since 2016-10-04
関連記事
CPython との違い
urequests
urllib.urequest
>>> import upip
>>> upip.install("urllib.urequest")
>>> from urllib import urequest
>>> response = urequest.urlopen("http://example.jp/index.html")
>>> print(response.read())
>>> response.close()
uaiohttpclient
>>> import upip
>>> upip.install("micropython-uaiohttpclient")
picoweb
>>> import upip
>>> upip.install("pycopy-ulogging")
Installing to: /lib/
Installing pycopy-ulogging 0.3 from https://files.pythonhosted.org/packages/56/85/47a6790260c85f0dad460124d1f9a6dbdaa0b0ac33b0ac89194f6f106276/pycopy-ulogging-0.3.tar.gz
>>> upip.install("picoweb")
Installing to: /lib/
Installing picoweb 1.8.2 from https://files.pythonhosted.org/packages/c2/22/a1eb0cf52b72e818fe47acadaf8ade200d7c0c7c6fc5acc7b47f53f2a338/picoweb-1.8.2.tar.gz
Installing pycopy-uasyncio 3.7 from https://files.pythonhosted.org/packages/e5/58/80b8b403c52ea88d44844570dbe487d7a4b3045ae0ecad0c9f4dbac0d104/pycopy-uasyncio-3.7.tar.gz
Installing pycopy-pkg_resources 0.2.1 from https://files.pythonhosted.org/packages/05/4a/5481a3225d43195361695645d78f4439527278088c0822fadaaf2e93378c/pycopy-pkg_resources-0.2.1.tar.gz
Installing pycopy-uasyncio.core 2.3.2 from https://files.pythonhosted.org/packages/ca/b2/c5bba0bde7022b6d927a6144c026d7bf310d3f8a20e031571fbf1a08a433/pycopy-uasyncio.core-2.3.2.tar.gz
aioble
いろいろ
since 2019-12-25
https://github.com/micropython/micropython/releases/tag/v1.12
https://micropython.org/download#esp32
http://docs.micropython.org/en/latest/esp32/tutorial/intro.html
機材
Windows 10 + WSL Ubuntu
$ pwd /home/nishimotz/esp/v1.12 $ ls -l total 1920 -rwxrwxrwx 1 nishimotz nishimotz 1408544 Dec 25 10:33 esp32-idf4-20191225-v1.12-5-g42e45bd69.bin $ sudo /usr/local/bin/python3.8 -m pip install esptool $ esptool.py esptool.py v2.8 途中略 $ esptool.py --port /dev/ttyS8 erase_flash Erasing flash (this may take a while)... Chip erase completed successfully in 4.3s Hard resetting via RTS pin... $ esptool.py --chip esp32 --port /dev/ttyS8 write_flash -z 0x1000 esp32-idf4-20191225-v1.12-5-g42e45bd69.bin Wrote 1408544 bytes (894648 compressed) at 0x00001000 in 78.7 seconds (effective 143.1 kbit/s)... Hash of data verified. Leaving... Hard resetting via RTS pin...
TeraTerm
MicroPython v1.12-5-g42e45bd69 on 2019-12-25; ESP32 module with ESP32 Type "help()" for more information. >>>
http://docs.micropython.org/en/latest/library/ubluetooth.html
iPod touch の LightBlue アプリで見守りつつ下記を実行する。
>>> from ubluetooth import BLE >>> ble = BLE() >>> ble.active(True) I (59560) BTDM_INIT: BT controller compile version [a482cda] I (66078) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE I (66178) phy: phy_version: 4102, 2fa7a43, Jul 15 2019, 13:06:06, 0, 0 GAP procedure initiated: stop advertising. True >>> ble.gap_advertise(100, adv_data='Python') GAP procedure initiated: advertise; disc_mode=2 adv_channel_map=7 own_addr_type=0 adv_filter_policy=0 adv_itvl_min=0 adv_itvl_max=0
LightBlue に ESP32 というペリフェラルが見える（ことがある）。
だが Advertisement data が No になっている。
素直にソースコードから examples を探そう。
https://github.com/micropython/micropython/tree/v1.12/examples/bluetooth
これらをローカルにダウンロードする。
ファイルをデバイスにコピーして実行するので WSL から ampy を使う。
TeraTerm で COM7 でつながったので ttyS7 を指定する。
$ sudo /usr/local/bin/python3.8 -m pip install adafruit-ampy $ export AMPY_PORT=/dev/ttyS7
main.py を作る
$ cat main.py from ble_temperature import demo demo()
TeraTerm が disconnect の状態で、WSL から下記を実行
$ ampy put ble_advertising.py $ ampy put ble_temperature.py $ ampy put main.py
コンソールを見ながらやりたいので TeraTerm から connect して、デバイスの RESET を押す。
ここでは Android アプリの BLE Scanner (Bluepixel) を使ってみる。
mpy-temp という名前のデバイスが見つかった。
connect すると
の PRIMARY SERVICE が見つかる。
ENVIRONMENTAL SENSING を選択すると
という READ / NOTIFY できる項目がある。
NOTIFY を有効にすると10秒ごとに値が更新される。
ble_temperature を流用して Alert サービスが作れることを確認した。
# ble_alert.py import bluetooth import struct import time from ble_advertising import advertising_payload from micropython import const import machine _IRQ_CENTRAL_CONNECT = const(1 << 0) _IRQ_CENTRAL_DISCONNECT = const(1 << 1) _IRQ_GATTS_WRITE = const(1 << 2) _ALERT_UUID = bluetooth.UUID(0x1802) _ALERT_CHAR = (bluetooth.UUID(0x2a06), bluetooth.FLAG_WRITE,) _ALERT_SERVICE = (_ALERT_UUID, (_ALERT_CHAR,),) _ADV_APPEARANCE = const(768) class BLEAlert: def __init__(self, ble, name='mpy-alert', update_alert=None): self._update_alert = update_alert self._ble = ble self._ble.active(True) self._ble.irq(handler=self._irq) ((self._handle,),) = self._ble.gatts_register_services((_ALERT_SERVICE,)) self._connections = set() self._payload = advertising_payload(name=name, services=[_ALERT_UUID], appearance=_ADV_APPEARANCE) self._advertise() def _irq(self, event, data): if event == _IRQ_CENTRAL_CONNECT: conn_handle, _, _, = data self._connections.add(conn_handle) elif event == _IRQ_CENTRAL_DISCONNECT: conn_handle, _, _, = data self._connections.remove(conn_handle) self._advertise() elif event == _IRQ_GATTS_WRITE: conn_handle, attr_handle = data data = self._ble.gatts_read(self._handle) value = struct.unpack('<b', data)[0] if self._update_alert: self._update_alert(value) def _advertise(self, interval_us=500000): self._ble.gap_advertise(interval_us, adv_data=self._payload) def demo(): pin2 = machine.Pin(2, machine.Pin.OUT) pin2.value(0) def update_alert(value): pin2.value(1 if value else 0) ble = bluetooth.BLE() alert = BLEAlert(ble, update_alert=update_alert) while True: time.sleep_ms(1000) if __name__ == '__main__': demo()
これで BLE Scanner から mpy-alert が見つかり、接続でき、1か2を書き込むと IO2 の LED が点灯する。
_ADV_APPEARANCE は ble_temperature と同じ値を使っているが、ちゃんと調べるべき。
2017年11月25日発売 CQ出版 Interface(インターフェース) 2018年1月号に寄稿しました
「第4部 マイコンPython無線センシング実験室」
<html> <iframe style="width:120px;height:240px;" marginwidth="0" marginheight="0" scrolling="no" frameborder="0" src="https://rcm-fe.amazon-adsystem.com/e/cm?ref=qf_sp_asin_til&t=r4wh-22&m=amazon&o=9&p=8&l=as1&IS1=1&detail=1&asins=B0776K46DV&linkId=4eb4e1754833c75c1e83398814d4cc1e&bc1=FFFFFF<1=_blank&fc1=333333&lc1=0066C0&bg1=FFFFFF&f=ifr">
</iframe>
</html>
2018年9月号にも執筆しました。
更新記録：2016-10-17 v1.8.5 で動作確認
https://www.kickstarter.com/projects/214379695/micropython-on-the-esp8266-beautifully-easy-iot
Adafruit の解説とビデオ
esp8266-20161017-v1.8.5.bin をダウンロード。
入手したもの：スイッチサイエンス ESPr One（Arduino Uno同一形状 ESP-WROOM-02開発ボード）
IDE からスケッチの書き込みはいちおう確認
MicroPython on the ESP8266
http://docs.micropython.org/en/latest/esp8266/esp8266/tutorial/intro.html#deploying-the-firmware
これを入れたときに技適がどうなるかはよくわからないので、自己責任でお願いします。
いつもの MacPorts 環境にまず esptool を入れる
https://github.com/themadinventor/esptool/
esptool は Python 3.x 未対応らしい。
$ sudo python2 -m pip install esptool $ which esptool.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/esptool.py
ESPr One を USB で Mac に接続。
シリアルポート確認は ls /dev/cu* で可能。
$ esptool.py -p /dev/cu.usbserial-DN01J32J flash_id esptool.py v1.1 Connecting... Manufacturer: a1 Device: 4016 $ esptool.py -p /dev/cu.usbserial-DN01J32J chip_id esptool.py v1.1 Connecting... Chip ID: 0x00082ed6 $ esptool.py -p /dev/cu.usbserial-DN01J32J read_mac esptool.py v1.1 Connecting... MAC: 5c:cf:7f:08:2e:d6
繋がっているようだ。
$ esptool.py -p /dev/cu.usbserial-DN01J32J --baud 460800 write_flash --flash_size=8m 0 esp8266-20161017-v1.8.5.bin esptool.py v1.1 Connecting... Running Cesanta flasher stub... Flash params set to 0x0020 Writing 565248 @ 0x0... 565248 (100 %) Wrote 565248 bytes at 0x0 in 14.7 seconds (307.6 kbit/s)... Leaving...
終わった。
Arduino IDE のシリアルモニタで
>>> a = 'hello' >>> a[-1] 'o' >>>
動いた！！
チュートリアルによるとすでに WiFi が有効になっているらしい：
WebREPL daemon started on ws://192.168.4.1:8266
Started webrepl in setup mode
could not open file 'main.py' for reading
MicroPython v1.8.4-10-gbc28ac8 on 2016-09-09; ESP module with ESP8266
Type "help()" for more information.
>>> help()
Welcome to MicroPython!
For online docs please visit http://docs.micropython.org/en/latest/esp8266/ .
For diagnostic information to include in bug reports execute 'import port_diag'.
Basic WiFi configuration:
import network
sta_if = network.WLAN(network.STA_IF); sta_if.active(True)
sta_if.scan() # Scan for available access points
sta_if.connect("<AP_name>", "<password>") # Connect to an AP
sta_if.isconnected() # Check for successful connection
# Change name/password of ESP8266's AP:
ap_if = network.WLAN(network.AP_IF)
ap_if.config(essid="<AP_NAME>", authmode=network.AUTH_WPA_WPA2_PSK, password="<password>")
Control commands:
CTRL-A -- on a blank line, enter raw REPL mode
CTRL-B -- on a blank line, enter normal REPL mode
CTRL-C -- interrupt a running program
CTRL-D -- on a blank line, do a soft reset of the board
CTRL-E -- on a blank line, enter paste mode
For further help on a specific object, type help(obj)
>>> import esp
>>> esp.check_fw()
size: 562812
md5: d7157c7b8c04bc252192de49358543fb
True
>>> import port_diag
FlashROM:
Flash ID: 1640a1 (Vendor: a1 Device: 4016)
Flash bootloader data:
Byte @2: 00
Byte @3: 40 (Flash size: 4MB Flash freq: 40MHZ)
Firmware checksum:
size: 562812
md5: d7157c7b8c04bc252192de49358543fb
True
Networking:
STA ifconfig: ('0.0.0.0', '0.0.0.0', '0.0.0.0', '208.67.222.222')
AP ifconfig: ('192.168.4.1', '255.255.255.0', '192.168.4.1', '208.67.222.222')
Free WiFi driver buffers of type:
0: 8
1: 0
2: 8
3: 4
4: 7
lwIP PCBs:
Active PCB states:
Listen PCB states:
Local port 8266, foreign port 20480 snd_nxt 258 rcv_nxt 1073707032 State: LISTEN
TIME-WAIT PCB states:
Auduino IDE シリアルモニタを使わなくても以下でアクセスできる：
$ screen /dev/cu.usbserial-DN01J32J 115200
screen を終了するには control+A K という話
$ sudo port install picocom $ which picocom /opt/local/bin/picocom $ picocom --baud 115200 /dev/cu.usbserial-DN01J32J
picocom を終了するには Ctrl+A Ctrl+X
Raspberry Pi 3 の USB ポートに ESPr One をつなぐ。
$ sudo apt-get install picocom $ sudo python2 -m pip install esptool $ esptool.py -p /dev/ttyUSB0 --baud 460800 write_flash --flash_size=8m 0 esp8266-20161030-v1.8.5-82-ge429daa.bin $ picocom --baud 115200 /dev/ttyUSB0
>>> import machine >>> pin14 = machine.Pin(14, machine.Pin.OUT) >>> pin14.value(1) # 点灯 >>> pin14.value(0) # 消灯
https://www.switch-science.com/catalog/2620/ に「LED1 本ボードではデジタル14番ピン」と書いてある。
PWM でだんだん明るくなる：
>>> pwm14 = machine.PWM(pin14) >>> pwm14.freq(500) >>> import time >>> for i in range(1024): ... time.sleep(0.01) ... pwm14.duty(i)
「モード切替ボタン（MODE）：ボタンを押している間はGPIO0がLOW」と書かれているのでやってみる：
>>> def callback(p):
... print('pin change', p)
...
>>> pin0 = machine.Pin(0, machine.Pin.IN)
>>> pin0.irq(trigger=machine.Pin.IRQ_FALLING, handler=callback)
<IRQ>
MODE ボタンを押すと：
>>> pin change Pin(0)
CPU クロック
>>> machine.freq() 80000000
リアルタイムクロック（あるのか。。）
>>> rtc = machine.RTC() >>> rtc.datetime() (2000, 1, 1, 5, 0, 38, 16, 87) >>> rtc.datetime() (2000, 1, 1, 5, 0, 38, 35, 869) >>> rtc.datetime() (2000, 1, 1, 5, 0, 38, 47, 423)
チュートリアルと順番が逆になったけどファイルシステム：
>>> import os >>> os.listdir() ['boot.py']
シリアル接続のターミナルで WebREPL を初期化すると、以後の作業は WebREPL だけで可能になる。
作業環境の WiFi ルーターにクライアントとして繋がるようにしておく。 そしてデフォルトの AP モードの接続を止めてやる。
>>> import network
>>> sta_if = network.WLAN(network.STA_IF)
>>> sta_if.active()
True
>>> sta_if.ifconfig()
('192.168.1.27', '255.255.255.0', '192.168.1.1', '192.168.1.1')
>>> ap_if = network.WLAN(network.AP_IF)
>>> ap_if.active(False)
>>> ap_if.active()
False
ここでは 192.168.1.27 でルーターに繋がったこととする。
それから、ここに書いてあるとおりにやる。
https://learn.adafruit.com/micropython-basics-esp8266-webrepl/access-webrepl
https://github.com/micropython/webrepl/archive/master.zip
MicroPython v1.8.5-10-g0e69e6b on 2016-10-17; ESP module with ESP8266 Type "help()" for more information. >>> import webrepl >>> webrepl.start() WebREPL daemon started on ws://192.168.4.1:8266 WebREPL daemon started on ws://192.168.1.27:8266 Started webrepl in normal mode >>>
webrepl.html を Firefox で開く。
ページ内のアドレス欄に
ws://192.168.1.27:8266/
と書いて [connect] ボタンを押すと接続できて、下記のようになる：
Welcome to MicroPython!
Welcome to MicroPython WebREPL!
This is the first time you connect to WebREPL, so please set a password
to use for the following WebREPL sessions. Once you enter the password
twice, your board will reboot with WebREPL running in active mode. On
some boards, you may need to press reset button or reconnect power.
New password: ******
Confirm password: ******
Password successfully set, restarting...
Disconnected
ここで設定するパスワードは以後の作業でずっと必要になる。
パスワードを2回入力すると接続が切れる。
シリアルのターミナルが下記のようになる：
WebREPL daemon started on ws://0.0.0.0:8266 Started webrepl in normal mode could not open file 'main.py' for reading MicroPython v1.8.4-10-gbc28ac8 on 2016-09-09; ESP module with ESP8266 Type "help()" for more information. >>>
もういちど WebREPL で [connect] を押すと：
シリアルターミナル
WebREPL connection from: ('192.168.1.4', 53893)
WebREPL 側
Welcome to MicroPython! Password: WebREPL connected >>>
ここで USB ケーブルを Mac から抜いて、ただの電源アダプタにつないでやる。
するとさきほど設定した情報で WiFi ルーターに再接続されるので、Mac から WebREPL に再接続できる。
Mac のネイティブ実行ファイルとしてビルドする：
$ git clone https://github.com/micropython/micropython.git $ cd micropython/ $ git submodule update --init $ cd unix $ make axtls $ make $ ./micropython MicroPython v1.8.4-120-g99d62c4 on 2016-10-04; darwin version Use Ctrl-D to exit, Ctrl-E for paste mode >>> list(5 * x + y for x in range(10) for y in [4, 2, 1]) [4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46] >>>
since 2016-12-07
updated on 2018-05-12
Windows Subsystem for Linux (Ubuntu) で検証。
https://github.com/micropython/micropython/issues/1991
http://forum.micropython.org/viewtopic.php?t=517
$ sudo apt-get install pkg-config libffi-dev
$ cd ports/unix
$ make axtls
$ make
LINK micropython
text data bss dec hex filename
2 0 0 2 2 build/build/frozen.o
5006 3735 0 8741 2225 build/build/frozen_mpy.o
391947 5920 2456 400323 61bc3 micropython
$ ./micropython
MicroPython v1.9.3-637-gaeaace0 on 2018-05-12; linux version
Use Ctrl-D to exit, Ctrl-E for paste mode
>>>
$ sudo make install
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
install -d /usr/local/bin
install micropython /usr/local/bin/micropython
$ which micropython
/usr/local/bin/micropython
$ micropython -m upip -h
upip - Simple PyPI package manager for MicroPython
Usage: micropython -m upip install [-p <path>] <package>... | -r <requirements.txt>
import upip; upip.install(package_or_list, [<path>])
If <path> is not given, packages will be installed into sys.path[1]
(can be set from MICROPYPATH environment variable, if current system
supports that).
Current value of sys.path[1]: /home/nishimotz/.micropython/lib
Note: only MicroPython packages (usually, named micropython-*) are supported
for installation, upip does not support arbitrary code in setup.py.
since 2018-05-12
http://docs.micropython.org/en/latest/unix/reference/packages.html
$ micropython -m upip install micropython-pystone_lowmem Installing to: /home/nishimotz/.micropython/lib/ Warning: pypi.org SSL certificate is not validated Installing micropython-pystone_lowmem 3.4.2-4 from https://files.pythonhosted.org/packages/2b/e9/cd38fe0fe0024193e6b8132b8c370c28ccd4bd8fae92dd5ae3b54d08768f/micropython-pystone_lowmem-3.4.2-4.tar.gz $ micropython MicroPython v1.9.3-637-gaeaace0 on 2018-05-12; linux version Use Ctrl-D to exit, Ctrl-E for paste mode >>> import pystone_lowmem >>> pystone_lowmem.main() Pystone(1.2) time for 500 passes = 6ms This machine benchmarks at 83333 pystones/second >>>
$ pwd path-to/micropython/ports/unix $ ls modules/ upip.py upip_utarfile.py $ micropython -m upip install -p modules micropython-pystone_lowmem Installing to: modules/ $ ls modules/ pystone_lowmem.py upip.py upip_utarfile.py $ make clean $ make axtls $ make $ sudo make install $ rm ~/.micropython/lib/* $ micropython MicroPython v1.9.3-637-gaeaace0 on 2018-05-12; linux version Use Ctrl-D to exit, Ctrl-E for paste mode >>> import pystone_lowmem >>> pystone_lowmem.main() Pystone(1.2) time for 500 passes = 6ms This machine benchmarks at 83333 pystones/second >>>
since 2017-03-25
入手した dev board (1月末に購入したまま放置していた）
秋月の dev board には後述する Blue LED がないらしい。
https://github.com/micropython/micropython-esp32/tree/esp32/esp32
うまく行く方法を知りたい人は Ubuntu でやり直すところまで読み飛ばしてください。
結末としては、FLASH のオプションを変えてビルドしなそうとしたら、ものすごく遅くなって、終わりそうにないので諦めた。
ESP-IDF setup (Windows)
step2 だけでいいと書いてある。
MSYS2 は Git for Windows に入っているものだと make がないので。。
"C:\Program Files\Git\usr\bin\bash"
ではなく、上記ページから落とした
esp32_win32_msys2_environment_and_toolchain-20170111.zip
の msys32\msys2_shell.cmd を実行したターミナルで、以下の作業を行う。
$ pwd /c/work/esp32 $ git clone --recursive https://github.com/espressif/esp-idf.git Cloning into 'esp-idf'... remote: Counting objects: 20248, done. remote: Total 20248 (delta 0), reused 0 (delta 0), pack-reused 20247 Receiving objects: 100% (20248/20248), 15.32 MiB | 1.11 MiB/s, done. Resolving deltas: 100% (13538/13538), done. Checking out files: 100% (1955/1955), done. Submodule 'components/aws_iot/aws-iot-device-sdk-embedded-C' (https://github.com/espressif/aws-iot-device-sdk-embedded-C.git) registered for path 'components/aws_iot/aws-iot-device-sdk-embedded-C' Submodule 'components/bt/lib' (https://github.com/espressif/esp32-bt-lib.git) registered for path 'components/bt/lib' Submodule 'components/coap/libcoap' (https://github.com/obgm/libcoap.git) registered for path 'components/coap/libcoap' Submodule 'components/esp32/lib' (https://github.com/espressif/esp32-wifi-lib.git) registered for path 'components/esp32/lib' Submodule 'components/esptool_py/esptool' (https://github.com/espressif/esptool.git) registered for path 'components/esptool_py/esptool' Submodule 'components/micro-ecc/micro-ecc' (https://github.com/kmackay/micro-ecc.git) registered for path 'components/micro-ecc/micro-ecc' Cloning into 'C:/work/esp32/esp-idf/components/aws_iot/aws-iot-device-sdk-embedded-C'... Cloning into 'C:/work/esp32/esp-idf/components/bt/lib'... Cloning into 'C:/work/esp32/esp-idf/components/coap/libcoap'... Cloning into 'C:/work/esp32/esp-idf/components/esp32/lib'... Cloning into 'C:/work/esp32/esp-idf/components/esptool_py/esptool'... Cloning into 'C:/work/esp32/esp-idf/components/micro-ecc/micro-ecc'... Submodule path 'components/aws_iot/aws-iot-device-sdk-embedded-C': checked out '7132505b00d2dd57f48478e75efa636021919aae' Submodule path 'components/bt/lib': checked out '9a4bb1d5287572664f170f9df4dbfd71babdfc68' Submodule path 'components/coap/libcoap': checked out '6468887a12666f88b8704d797fc176cd4f40ee4c' Submodule path 'components/esp32/lib': checked out 'c88869b1aca5a062d1ebc5e0199fd8720cb08710' Submodule path 'components/esptool_py/esptool': checked out '907273664ada32fc33f3fbfeba99550512c67e4d' Submodule path 'components/micro-ecc/micro-ecc': checked out '14222e062d77f45321676e813d9525f32a88e8fa'
ここをみて
https://github.com/micropython/micropython-esp32/blob/esp32/esp32/Makefile
ESPIDF_SUPHASH := c06cc31d85cc700e1dbddbe527d4282c4bc5845a
であることを知る。
$ cd /c/work/esp32/esp-idf $ git checkout c06cc31d85cc700e1dbddbe527d4282c4bc5845a warning: unable to rmdir components/aws_iot/aws-iot-device-sdk-embedded-C: Directory not empty M components/esp32/lib M components/esptool_py/esptool Note: checking out 'c06cc31d85cc700e1dbddbe527d4282c4bc5845a'. You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard any commits you make in this state without impacting any branches by performing another checkout. If you want to create a new branch to retain commits you create, you may do so (now or later) by using -b with the checkout command again. Example: git checkout -b <new-branch-name> HEAD is now at c06cc31... Merge branch 'bugfix/partition_and_mmap_issues' into 'master'
上の階層に戻って本体を clone する
$ cd .. $ git clone --recursive https://github.com/micropython/micropython-esp32.git Cloning into 'micropython-esp32'... remote: Counting objects: 51026, done.
make する
$ export ESPIDF=/c/work/esp32/esp-idf $ cd micropython-esp32
Git for Windows の MSYS には make がなくてこうなる
$ make -C mpy-cross bash: make: command not found
ちゃんと toolchain を使うと、
$ pwd /c/work/esp32/micropython-esp32 $ make -C mpy-cross make: Entering directory '/c/work/esp32/micropython-esp32/mpy-cross' Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity. mkdir -p build/genhdr Generating build/genhdr/mpversion.h GEN build/genhdr/qstr.i.last GEN build/genhdr/qstr.split GEN build/genhdr/qstrdefs.collected.h QSTR updated GEN build/genhdr/qstrdefs.generated.h mkdir -p build/py/ mkdir -p build/py/../extmod/ mkdir -p build/py/../lib/embed/ mkdir -p build/py/../lib/utils/ CC ../py/mpstate.c CC ../py/nlrx86.S CC ../py/nlrx64.S CC ../py/nlrthumb.c CC ../py/nlrxtensa.S CC ../py/nlrsetjmp.c ... CC ../py/../lib/utils/printf.c CC main.c CC gccollect.c LINK mpy-cross text data bss dec hex filename 176137 2624 724 179485 2bd1d mpy-cross make: Leaving directory '/c/work/esp32/micropython-esp32/mpy-cross'
おわった。
すでに export ESPIDF=/c/work/esp32/esp-idf しているという前提で続き。
$ cd esp32 $ make
... MPY modules/apa106.py MPY modules/dht.py Traceback (most recent call last): File "modules/dht.py", line 1 SyntaxError: invalid syntax make: *** [../py/mkrules.mk:118: build/frozen_mpy/dht.mpy] Error 1
止まってしまった。
$ cat modules/dht.py ../../esp8266/scripts/dht.py $ ls -la modules/dht.py -rw-r--r-- 1 nishimotz nishimotz 28 Mar 25 12:15 modules/dht.py
あーこれシンボリックリンクか。。。
https://github.com/micropython/micropython-esp32/tree/esp32/esp32/modules
git config core.symlinks true しとけばよかったらしい。
clone しなおすのが面倒なのでコピーする。
$ cd modules $ cp ../../esp8266/scripts/dht.py . $ cp ../../esp8266/modules/ds18x20.py . $ cp ../../esp8266/modules/onewire.py .
最後は？
$ cat urequests.py ../../../micropython-lib/urequests/urequests.py
micropython-lib いるのか
https://github.com/micropython/micropython-lib
$ cd ../../../ $ git clone https://github.com/micropython/micropython-lib.git $ cd micropython-esp32/esp32/modules $ cp ../../../micropython-lib/urequests/urequests.py .
つづき
$ cd .. $ make ... CC /c/work/esp32/esp-idf/components/wpa_supplicant/port/os_xtensa.c LINK build/application.elf text data bss dec hex filename 650793 164104 121328 936225 e4921 build/application.elf Create build/application.bin esptool.py v2.0-beta2 Create build/firmware.bin bootloader 9408 partitions 3072 application 937776 total 1003312
おわった
USB-MicroUSB ケーブルで ESP32 ボードをPCにつなぐ。
# Makefile PORT ?= COM4 BAUD ?= 115200
$ make erase Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity. Erasing flash esptool.py v2.0-beta2 Connecting........___ Uploading stub... Running stub... Stub running... Erasing flash (this may take a while)... Chip erase completed successfully in 2.2s Hard resetting... $ make deploy Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity. Writing build/firmware.bin to the board esptool.py v2.0-beta2 Connecting........___ Uploading stub... Running stub... Stub running... Attaching SPI flash... Configuring flash size... Compressed 1003312 bytes to 546234... Wrote 1003312 bytes (546234 compressed) at 0x00000000 in 48.2 seconds (effective 166.7 kbit/s)... Hash of data verified. Leaving... Hard resetting...
TeraTerm で COM4 につないでリセットしたが、MicroPython 起動せず。
ets Jun 8 2016 00:22:57 rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0x00 clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:QIO, clock div:2 load:0x3fff0008,len:8 load:0xffffffff,len:-1
うまくいかないので esptool.py の動作確認からやり直す。
$ $ESPIDF/components/esptool_py/esptool/esptool.py -h
usage: esptool [-h] [--chip {auto,esp8266,esp32}] [--port PORT] [--baud BAUD]
[--before {default_reset,no_reset}]
[--after {hard_reset,soft_reset,no_reset}] [--no-stub]
{load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash_status,write_flash_status,read_flash,verify_flash,erase_flash,erase_region,version}
...
esptool.py v2.0-beta2 - ESP8266 ROM Bootloader Utility
positional arguments:
{load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash_status,write_flash_status,read_flash,verify_flash,erase_flash,erase_region,version}
Run esptool {command} -h for additional help
load_ram Download an image to RAM and execute
dump_mem Dump arbitrary memory to disk
read_mem Read arbitrary memory location
write_mem Read-modify-write to arbitrary memory location
write_flash Write a binary blob to flash
run Run application code in flash
image_info Dump headers from an application image
make_image Create an application image from binary files
elf2image Create an application image from ELF file
read_mac Read MAC address from OTP ROM
chip_id Read Chip ID from OTP ROM
flash_id Read SPI flash manufacturer and device ID
read_flash_status Read SPI flash status register
write_flash_status Write SPI flash status register
read_flash Read SPI flash content
verify_flash Verify a binary blob against flash
erase_flash Perform Chip Erase on SPI flash
erase_region Erase a region of the flash
version Print esptool version
optional arguments:
-h, --help show this help message and exit
--chip {auto,esp8266,esp32}, -c {auto,esp8266,esp32}
Target chip type
--port PORT, -p PORT Serial port device
--baud BAUD, -b BAUD Serial port baud rate used when flashing/reading
--before {default_reset,no_reset}
What to do before connecting to the chip
--after {hard_reset,soft_reset,no_reset}, -a {hard_reset,soft_reset,no_reset}
What to do after esptool.py is finished
--no-stub Disable launching the flasher stub, only talk to ROM
bootloader. Some features will not be available.
$ $ESPIDF/components/esptool_py/esptool/esptool.py -p COM4 -b 115200 flash_id
esptool.py v2.0-beta2
Connecting........_
Detecting chip type... ESP32
Uploading stub...
Running stub...
Stub running...
Manufacturer: c8
Device: 4016
Hard resetting...
$ $ESPIDF/components/esptool_py/esptool/esptool.py -p COM4 -b 115200 write_flash 0 build/application.bin esptool.py v2.0-beta2 Connecting........__ Detecting chip type... ESP32 Uploading stub... Running stub... Stub running... Attaching SPI flash... Configuring flash size... Auto-detected Flash size: 4MB Compressed 937776 bytes to 540199... Wrote 937776 bytes (540199 compressed) at 0x00000000 in 47.6 seconds (effective 157.6 kbit/s)... Hash of data verified. Leaving... Hard resetting...
やっぱり起動せず
>ets Jun 8 2016 00:22:57 rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) flash read err, 1000 Falling back to built-in command interpreter. OK >
https://github.com/micropython/micropython-esp32/issues/49
You might need to use FLASH_MODE = dio and FLASH_SIZE = 2MB config settings in your GNUmakefile.
とのことだ。。修正して make からやりなおしかな。。
$ sudo apt-get install git wget make libncurses-dev flex bison gperf python python-serial $ mkdir esp32-setup $ cd esp32-setup $ wget --no-check-certificate https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-61-gab8375a-5.2.0.tar.gz $ cd .. $ mkdir esp $ cd esp $ tar -xzf ../esp32-setup/xtensa-esp32-elf-linux64-1.22.0-61-gab8375a-5.2.0.tar.gz $ cd .. $ export PATH=$PATH:$HOME/esp/xtensa-esp32-elf/bin $ git clone --recursive https://github.com/espressif/esp-idf.git $ cd esp-idf/ $ git checkout c06cc31d85cc700e1dbddbe527d4282c4bc5845a $ cd .. $ git clone --recursive https://github.com/micropython/micropython-esp32.git $ git clone https://github.com/micropython/micropython-lib.git $ export ESPIDF=$HOME/esp/esp-idf $ cd micropython-esp32/ $ make -C mpy-cross $ cd esp32
Makefile を編集。
FLASH_MODE = dio FLASH_SIZE = 2MB
$ make
最後の make erase / make deploy は root で実行する。
$ su # export ESPIDF=/home/(USERNAME)/esp/esp-idf # make erase # make deploy
FLASH_MODE をちゃんと設定すればすんなり動いた。
https://github.com/Nicholas3388/LuaNode
Download the DOIT dev-board schematic here と書かれているところから回路図を参照。GPIO2 が青いLEDであることを把握。
I (1298) heap_alloc_caps: Initializing. RAM available for dynamic allocation: I (1299) heap_alloc_caps: At 3FFD02B0 len 0000FD50 (63 KiB): DRAM I (1308) heap_alloc_caps: At 3FFE8000 len 00018000 (96 KiB): D/IRAM I (1330) heap_alloc_caps: At 40099F20 len 000060E0 (24 KiB): IRAM I (1351) cpu_start: Pro cpu up. I (1362) cpu_start: Single core mode I (1375) cpu_start: Pro cpu start user code I (1436) cpu_start: Starting scheduler on PRO CPU. could not open file 'boot.py' for reading could not open file 'main.py' for reading MicroPython v1.8.6-645-gf3913bf-dirty on 2017-03-26; ESP32 module with ESP32 Type "help()" for more information. >>> import machine >>> pin2 = machine.Pin(2,machine.Pin.OUT) >>> pin2.value(1) >>> pin2.value(0)
成功。
2018-04-20
Windows COM4 に書き込みをする場合
$ export PORT=/dev/ttyS4 $ export BAUD=115200 $ sudo chmod 777 $PORT $ cd ~/esp/micropython/ports/esp32 $ make erase $ make deploy
since 2018-04-20
インターフェース1月号では upysh を紹介したが m5stack のファームには upysh が入っていないようだ。
かわりに ampy を使うと便利かも知れない。
https://github.com/adafruit/ampy
https://ambidata.io/blog/2018/03/15/ampy/
前述の WSL 環境
$ which python3 /usr/bin/python3 $ sudo python3 -m pip install adafruit-ampy $ which ampy /usr/local/bin/ampy $ export AMPY_BAUD=115200 $ export AMPY_PORT=/dev/ttyS6 $ sudo chmod 777 $AMPY_PORT $ ampy ls boot.py
baud は設定した方が安定するようだ。
BOOT スイッチ
>>> import machine >>> pin0 = machine.Pin(0,machine.Pin.IN) >>> pin0.value() 1 >>> pin0.value() 0
EN スイッチを押すとリブートする（逆じゃないのか）
http://nick.zoic.org/etc/esp32-capacitive-sensors/
https://github.com/micropython/micropython-esp32/pull/23
D12 にリード線をつなぐ
import machine
import time
t = machine.TouchPad(machine.Pin(12))
while True:
time.sleep(0.1)
print(t.read())
触ると数字が減る
1390 1388 1382 196 195 191 195 191 196 191 195 191
since 2017-12-12