LuatOS ESP32-C3

外觀

引腳

測試電路

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

const byte D4_LED = 12;
const byte D5_LED = 13;
const unsigned int DELAY = 500;
void setup() {
	pinMode(D4_LED, OUTPUT);
	pinMode(D5_LED, OUTPUT);
}
void loop() {
	digitalWrite(D4_LED, HIGH);
	digitalWrite(D5_LED, LOW);
	delay(DELAY);
	digitalWrite(D4_LED, LOW);
	digitalWrite(D5_LED, HIGH);
	delay(DELAY);
}

實際效果

WS2812B 通孔 LED

外觀

引腳

測試電路

實際效果

測試電路2

實際效果2

測試電路3

#include <Adafruit_NeoPixel.h>

const byte LEVEL = 0x10;
const byte CLEAR = 0x00;
const unsigned long COLOR[] = {
	(0UL + CLEAR) << 16 | (0UL + CLEAR) << 8 | CLEAR, // NONE
	(0UL + LEVEL) << 16 | (0UL + CLEAR) << 8 | CLEAR, // RED
	(0UL + CLEAR) << 16 | (0UL + LEVEL) << 8 | CLEAR, // GREEN
	(0UL + CLEAR) << 16 | (0UL + CLEAR) << 8 | LEVEL, // BLUE
	(0UL + LEVEL) << 16 | (0UL + LEVEL) << 8 | CLEAR, // YELLOW
	(0UL + LEVEL) << 16 | (0UL + CLEAR) << 8 | LEVEL, // CYAN
	(0UL + CLEAR) << 16 | (0UL + LEVEL) << 8 | LEVEL, // MAGENTA
	(0UL + LEVEL) << 16 | (0UL + LEVEL) << 8 | LEVEL, // WHITE
};

const unsigned int NUM = 1;
const byte PIN = 2;
const byte CONTROL = 9;
byte i = 0;
bool pressed = false;

Adafruit_NeoPixel rgb = Adafruit_NeoPixel(NUM, PIN);

void setup() {
	rgb.begin();
	pinMode(PIN, INPUT_PULLUP);
}

void loop() {
	if (digitalRead(CONTROL) == LOW && !pressed) {
		pressed = true;
		i++;
		i = i % (sizeof(COLOR) / sizeof(unsigned long));
	} else if (digitalRead(CONTROL) == HIGH && pressed) {
		pressed = false;
	}
	for (unsigned int j = 0; j < NUM; j++) {
		rgb.setPixelColor(j, COLOR[i]);
		rgb.show();
	}
	delay(1);
}

實際效果3

使用 MicroPython

#!/bin/bash
ESPTOOL="/path/of/esptool.py" # change to your esptool path
PORT="/dev/ttyACM0" # change to your ESP32-C3 board port
CHIP="esp32c3"
BUAD="115200" # default speed, your can change to 230400, 460800
BEFORE="default_reset"
AFTER="hard_reset"
MODE="dio"
SIZE="4MB" # change to your ESP32-C3 size
OFFSET="0x0"
FILE="/tmp/firmware"
# uncomment if the same
#ESPTOOL="${HOME}/.arduino*/packages/esp32/tools/esptool_py/*/esptool.py"
wget `curl -sL --request "GET" "https://micropython.org/download/esp32c3/" | grep 'v\([0-9]\+\.\)\+bin"' | sed -r 's/.*"([^"]+)".*/https:\/\/micropython\.org\/\1/g' | sort | tail -1` -O "${FILE}"
python3 $ESPTOOL --port "${PORT}" --chip "${CHIP}" --baud "${BUAD}" --before "${BEFORE}" --after "${AFTER}" write_flash --flash_mode "${MODE}" --flash_size "${SIZE}" --erase-all "${OFFSET}" "${FILE}"
rm "${FILE}"

import machine, time, socket, network, wifi_config

# connect wifi
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.disconnect()
wlan.connect(wifi_config.ssid, wifi_config.password)
while not wlan.isconnected():
	time.sleep(0.1)
print(wlan.ifconfig())

# create http server
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(("0.0.0.0", 80))
server.listen(1)

# waiting client
while True:
	client, address = server.accept()
	print(address)
	request = client.recv(4096).decode("UTF-8")
	print(request)
	response = "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\n\r\nhello, world"
	client.send(response.encode("UTF-8"))
	client.close()

使用 CircuitPython

#!/bin/bash
ESPTOOL="/path/of/esptool.py" # change to your esptool path
PORT="/dev/ttyACM0" # change to your ESP32-C3 board port
CHIP="esp32c3"
BUAD="115200" # default speed, your can change to 230400, 460800
BEFORE="default_reset"
AFTER="hard_reset"
MODE="dio"
SIZE="4MB" # change to your ESP32-C3 size
OFFSET="0x0"
FILE="/tmp/firmware"
# uncomment if the same
#ESPTOOL="${HOME}/.arduino*/packages/esp32/tools/esptool_py/*/esptool.py"
wget `curl -sL --request "GET" "https://adafruit-circuit-python.s3.amazonaws.com/?delimiter=/&prefix=bin/luatos_core_esp32c3_ch343/en_US/" | grep '\.bin<' | sed -r 's/<\/?Key>/\nhttps:\/\/adafruit-circuit-python\.s3\.amazonaws\.com\//g' | grep '\.bin' | sort | tail -1` -O "${FILE}"
python3 $ESPTOOL --port "${PORT}" --chip "${CHIP}" --baud "${BUAD}" --before "${BEFORE}" --after "${AFTER}" write_flash --flash_mode "${MODE}" --flash_size "${SIZE}" --erase-all "${OFFSET}" "${FILE}"
rm "${FILE}"

補充資料

AttributeError: 'module' object has no attribute 'GP2'

import board
print(dir(board))

['__class__', '__name__', 'BOOT0', 'BUTTON', 'IO0', 'IO1', 'IO10', 'IO12', 'IO13', 'IO18', 'IO19', 'IO2', 'IO3', 'IO4', 'IO5', 'IO6', 'IO7', 'IO8', 'IO9', 'LED', 'LED2', 'UART', 'board_id']

總結

參考資料