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M5Chain/examples/UnitChainBus_Example/Output/Output.ino
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renletao a3317c1a04 Fix Unit ChainBus example program（V1.0.3）
2026-01-14 10:33:29 +08:00

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Arduino
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/*
*SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD
*
*SPDX-License-Identifier: MIT
*/
#include "M5Chain.h"
#define TXD_PIN GPIO_NUM_21 // Tx
#define RXD_PIN GPIO_NUM_22 // Rx
Chain M5Chain;
device_list_t *devices_list = NULL;
chain_status_t chain_status;
uint16_t device_nums = 0;
uint8_t operation_status = 0;
uint8_t rgb_test[5][3] = {
{0xFF, 0x00, 0x00}, {0x00, 0xFF, 0x00}, {0x00, 0x00, 0xFF}, {0xFF, 0xFF, 0xFF}, {0x00, 0x00, 0x00},
};
void printDeviceList(device_list_t *devices);
void printWorkStatus(work_status_t gpio11_status, work_status_t gpio12_status);
void setup()
{
Serial.begin(115200);
Serial.println("M5Chain ChainBus Test");
M5Chain.begin(&Serial2, 115200, RXD_PIN, TXD_PIN);
if (M5Chain.isDeviceConnected()) {
Serial.println("devices is connected");
chain_status = M5Chain.getDeviceNum(&device_nums);
if (chain_status == CHAIN_OK) {
devices_list = (device_list_t *)malloc(sizeof(device_list_t));
devices_list->count = device_nums;
devices_list->devices = (device_info_t *)malloc(sizeof(device_info_t) * device_nums);
if (M5Chain.getDeviceList(devices_list)) {
Serial.println("devices list get success");
printDeviceList(devices_list);
} else {
Serial.println("devices list get failed");
}
} else {
Serial.printf("error status:%d \r\n", chain_status);
Serial.printf("devices num get failed.\r\n");
}
} else {
Serial.println("devices is not connected.");
}
if (devices_list) {
for (uint8_t i = 0; i < devices_list->count; i++) {
if (devices_list->devices[i].device_type == UNIT_CHAIN_BUS_TYPE_CODE) {
chain_status = M5Chain.setRGBLight(devices_list->devices[i].id, 100, &operation_status);
if (chain_status == CHAIN_OK && operation_status) {
Serial.printf("ID[%d] set rgb light success\r\n", devices_list->devices[i].id);
} else {
Serial.printf("ID[%d] set rgb light failed, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, chain_status, operation_status);
}
for (uint8_t j = 0; j < 5; j++) {
uint8_t rgb[3] = {0};
chain_status =
M5Chain.setRGBValue(devices_list->devices[i].id, 0, 1, rgb_test[j], 3, &operation_status);
if (chain_status == CHAIN_OK && operation_status) {
Serial.printf("ID[%d] set rgb %d %d %d success\r\n", devices_list->devices[i].id,
rgb_test[j][0], rgb_test[j][1], rgb_test[j][2]);
} else {
Serial.printf("ID[%d] set rgb %d %d %d failed, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, rgb_test[j][0], rgb_test[j][1], rgb_test[j][2],
chain_status, operation_status);
}
chain_status = M5Chain.getRGBValue(devices_list->devices[i].id, 0, 1, rgb, 3, &operation_status);
if (chain_status == CHAIN_OK && operation_status) {
Serial.printf("ID[%d] get rgb %d %d %d success \r\n", devices_list->devices[i].id, rgb[0],
rgb[1], rgb[2]);
} else {
Serial.printf("ID[%d] get rgb %d %d %d failed, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, rgb[0], rgb[1], rgb[2], chain_status,
operation_status);
}
delay(500);
}
chain_status =
M5Chain.setChainBusOutputMode(devices_list->devices[i].id, CHAIN_GPIO_PIN_1,
CHAIN_GPIO_OUTPUT_PUSHPULL, CHAIN_GPIO_PULL_NO, &operation_status);
if (chain_status == CHAIN_OK && operation_status == 1) {
Serial.printf("Unit ChainBus ID[%d] set gpio mode success \r\n", devices_list->devices[i].id);
} else {
Serial.printf("Unit ChainBus ID[%d] set gpio mode fail, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, chain_status, operation_status);
}
chain_status =
M5Chain.setChainBusOutputMode(devices_list->devices[i].id, CHAIN_GPIO_PIN_2,
CHAIN_GPIO_OUTPUT_PUSHPULL, CHAIN_GPIO_PULL_NO, &operation_status);
if (chain_status == CHAIN_OK && operation_status == 1) {
Serial.printf("Unit ChainBus ID[%d] set gpio mode success \r\n", devices_list->devices[i].id);
} else {
Serial.printf("Unit ChainBus ID[%d] set gpio mode fail, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, chain_status, operation_status);
}
}
}
} else {
Serial.println("devices list is NULL");
}
delay(5);
}
work_status_t gpio1;
work_status_t gpio2;
void loop()
{
if (devices_list) {
for (uint8_t i = 0; i < devices_list->count; i++) {
if (devices_list->devices[i].device_type == UNIT_CHAIN_BUS_TYPE_CODE) {
chain_status = M5Chain.getChainBusWorkMode(devices_list->devices[i].id, &gpio1, &gpio2);
if (chain_status == CHAIN_OK) {
printWorkStatus((work_status_t)gpio1, (work_status_t)gpio2);
if (gpio1 == CHAIN_OUTPUT_WORK_STATUS) {
gpio_level_t gpio1_status;
chain_status = M5Chain.getChainBusOutputLevel(devices_list->devices[i].id, CHAIN_GPIO_PIN_1,
&gpio1_status, &operation_status);
if (chain_status == CHAIN_OK && operation_status == 1) {
Serial.printf("Unit ChainBus ID[%d] gpio1 status: %d \r\n", devices_list->devices[i].id,
gpio1_status);
} else {
Serial.printf(
"Unit ChainBus ID[%d] get gpio1 status fail, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, chain_status, operation_status);
}
M5Chain.setChainBusOutputLevel(devices_list->devices[i].id, CHAIN_GPIO_PIN_1,
(gpio_level_t)(1 - gpio1_status), &operation_status);
}
if (gpio2 == CHAIN_OUTPUT_WORK_STATUS) {
gpio_level_t gpio2_status;
chain_status = M5Chain.getChainBusOutputLevel(devices_list->devices[i].id, CHAIN_GPIO_PIN_2,
&gpio2_status, &operation_status);
if (chain_status == CHAIN_OK && operation_status == 1) {
Serial.printf("Unit ChainBus ID[%d] gpio2 status: %d \r\n", devices_list->devices[i].id,
gpio2_status);
} else {
Serial.printf(
"Unit ChainBus ID[%d] get gpio2 status fail, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, chain_status, operation_status);
}
M5Chain.setChainBusOutputLevel(devices_list->devices[i].id, CHAIN_GPIO_PIN_2,
(gpio_level_t)(1 - gpio2_status), &operation_status);
}
}
} else {
Serial.printf("Unit ChainBus ID[%d] get work mode fail, chain_status:%d operation_status:%d \r\n",
devices_list->devices[i].id, chain_status, operation_status);
}
}
}
if (M5Chain.getEnumPleaseNum()) {
Serial.print("enum please");
}
delay(1000);
}
void printDeviceList(device_list_t *devices)
{
if (devices == NULL) {
Serial.println("devices is NULL");
return;
}
Serial.print("devices count: ");
Serial.println(devices->count);
for (uint8_t i = 0; i < devices->count; i++) {
Serial.print("devices ID: ");
Serial.println(devices->devices[i].id);
Serial.print("devices type: ");
Serial.println(devices->devices[i].device_type);
}
}
void printWorkStatus(work_status_t gpio11_status, work_status_t gpio12_status)
{
Serial.print(" >>> GPIO_1: ");
switch (gpio11_status) {
case CHAIN_NOT_WORK_STATUS:
Serial.println("Not configured working status");
break;
case CHAIN_OUTPUT_WORK_STATUS:
Serial.println("Output status");
break;
case CHAIN_INPUT_WORK_STATUS:
Serial.println("Input status");
break;
case CHAIN_NVIC_WORK_STATUS:
Serial.println("External interrupt working status");
break;
case CHAIN_ADC_WORK_STATUS:
Serial.println("ADC working status");
break;
case CHAIN_I2C_WORK_STATUS:
Serial.println("I2C working status");
break;
default:
Serial.println("Unrecognized work status");
break;
}
Serial.print(" >>> GPIO_2: ");
switch (gpio12_status) {
case CHAIN_NOT_WORK_STATUS:
Serial.println("Not configured working status.");
break;
case CHAIN_OUTPUT_WORK_STATUS:
Serial.println("Output status.");
break;
case CHAIN_INPUT_WORK_STATUS:
Serial.println("Input status.");
break;
case CHAIN_NVIC_WORK_STATUS:
Serial.println("External interrupt working status.");
break;
case CHAIN_ADC_WORK_STATUS:
Serial.println("ADC working status.");
break;
case CHAIN_I2C_WORK_STATUS:
Serial.println("I2C working status.");
break;
default:
Serial.println("Unrecognized work status.");
break;
}
}
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