/* *SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD * *SPDX-License-Identifier: MIT */ #include "M5Chain.h" #define TXD_PIN GPIO_NUM_6 // Tx #define RXD_PIN GPIO_NUM_5 // Rx Chain M5Chain; device_list_t *devices_list = NULL; uint16_t device_nums = 0; uint8_t operation_status = 0; chain_status_t chain_status = CHAIN_OK; 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) { 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 setup() { Serial.begin(115200); Serial.println("M5Chain Key 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("get devices list success"); printDeviceList(devices_list); } else { Serial.println("get devices list 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 == CHAIN_KEY_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.setKeyButtonTriggerInterval(devices_list->devices[i].id, BUTTON_DOUBLE_CLICK_TIME_200MS, BUTTON_LONG_PRESS_TIME_3S, &operation_status); if (chain_status == CHAIN_OK && operation_status) { Serial.printf("KEY ID[%d] set key button trigger interval success\r\n", devices_list->devices[i].id); } else { Serial.printf( "KEY ID[%d] set key button trigger interval failed, chain_status:%d operation_status:%d \r\n", devices_list->devices[i].id, chain_status, operation_status); } chain_status = M5Chain.setKeyButtonMode(devices_list->devices[i].id, CHAIN_BUTTON_REPORT_MODE, &operation_status); if (chain_status == CHAIN_OK && operation_status) { Serial.printf("KEY ID[%d] set key button mode success\r\n", devices_list->devices[i].id); } else { Serial.printf("KEY ID[%d] set key button mode failed, chain_status:%d operation_status:%d \r\n", devices_list->devices[i].id, chain_status, operation_status); } } } } else { Serial.println("devices list is NULL"); } } void loop() { if (devices_list) { for (uint8_t i = 0; i < devices_list->count; i++) { if (devices_list->devices[i].device_type == CHAIN_KEY_TYPE_CODE) { uint8_t button_status = 0; button_double_click_time_t button_double_click_time; button_long_press_time_t button_long_press_time; chain_button_press_type_t button_press_type; chain_button_mode_t button_mode; chain_status = M5Chain.getKeyButtonStatus(devices_list->devices[i].id, &button_status); if (chain_status == CHAIN_OK) { Serial.printf("KEY ID[%d] button status:%d \r\n", devices_list->devices[i].id, button_status); } else { Serial.printf("KEY ID[%d] get button status failed, chain_status:%d \r\n", devices_list->devices[i].id, chain_status); } chain_status = M5Chain.getKeyButtonTriggerInterval(devices_list->devices[i].id, &button_double_click_time, &button_long_press_time); if (chain_status == CHAIN_OK) { Serial.printf("KEY ID[%d] button double click time:%d, button long press time:%d \r\n", devices_list->devices[i].id, button_double_click_time, button_long_press_time); } else { Serial.printf("KEY ID[%d] get button trigger interval failed, chain_status:%d \r\n", devices_list->devices[i].id, chain_status); } chain_status = M5Chain.getKeyButtonMode(devices_list->devices[i].id, &button_mode); if (chain_status == CHAIN_OK) { Serial.printf("KEY ID[%d] button mode:%d \r\n", devices_list->devices[i].id, button_mode); } else { Serial.printf("KEY ID[%d] get button mode failed, chain_status:%d \r\n", devices_list->devices[i].id, chain_status); } while (M5Chain.getKeyButtonPressStatus(devices_list->devices[i].id, &button_press_type)) { switch (button_press_type) { case CHAIN_BUTTON_PRESS_SINGLE: Serial.printf("KEY ID[%d] button press type: single \r\n", devices_list->devices[i].id); break; case CHAIN_BUTTON_PRESS_DOUBLE: Serial.printf("KEY ID[%d] button press type: double \r\n", devices_list->devices[i].id); break; case CHAIN_BUTTON_PRESS_LONG: Serial.printf("KEY ID[%d] button press type: long \r\n", devices_list->devices[i].id); break; } } } } } delay(100); }