7 segment clock by random1101 for ESPHome

thingiverse

This is the electronics remix for the [7 segment clock made by random1101](https://www.thingiverse.com/thing:3437127). It uses the ESP-01s for everything. Once it connected to the Home Assistant it may be controlled over the entity card. It supports separate color, brightness and on/off for hours, minutes and colon parts of the clock. Current time is synchronized with SNTP servers. Note: if you prefer to use static IP it's important to configure at least 1 DNS server in a WIFI section of the config (in my case I use the IP of my router). _WARNING_ There're 2 modifications of ESP-01: one has 1MB of flash memory and one with only 512kb. The firmware compiled from this configuration takes about 36kb of RAM and 404.5kb of Flash memory. If you have a 512kb there will be no room for the firmware for OTA updates. Electronics BOM: 1) ESP-01s 2) 5v to 3.3v downshifter to power ESP-01s [like this](https://aliexpress.ru/item/32555282571.html?spm=a2g0s.9042311.0.0.46f933edNvOZb6&_ga=2.179512935.236757223.1608283098-301929085.1605773963&sku_id=58848067671) 3) Any 5v wall plug power supply with about 1 amp of current PS, I'm still a noob in electronics. Please feel free in pointing me if there's any mistake in wiring schematics. Thanks PPS: Note that in a newer versions of ESPHome the ESPColor class was replaced with Color class. Thank's @Pulsaro for pointing on this. ---- ##ESPHome configuration ```yaml substitutions: device_name: led_clock esphome: name: $device_name platform: ESP8266 board: esp01_1m on_boot: - light.turn_on: id: led_strip brightness: 100% red: 0 green: 0 blue: 0 effect: "${device_name} Time effect" wifi: ssid: !secret wifi_ssid password: !secret wifi_password # Enable fallback hotspot (captive portal) in case wifi connection fails ap: ssid: "${device_name} Fallback Hotspot" password: !secret wifi_fallback_api_password logger: level: DEBUG # Enable Home Assistant API api: password: !secret hassio_api_password ota: password: !secret ota_password globals: - id: hours_red_value type: int restore_value: yes initial_value: '0' - id: hours_green_value type: int restore_value: yes initial_value: '0' - id: hours_blue_value type: int restore_value: yes initial_value: '0' - id: minutes_red_value type: int restore_value: yes initial_value: '0' - id: minutes_green_value type: int restore_value: yes initial_value: '0' - id: minutes_blue_value type: int restore_value: yes initial_value: '0' - id: dots_red_value type: int restore_value: yes initial_value: '0' - id: dots_green_value type: int restore_value: yes initial_value: '0' - id: dots_blue_value type: int restore_value: yes initial_value: '0' output: #======== Hours ============ - platform: template id: hours_red_output type: float write_action: lambda: |- id(hours_red_value) = 255.0 * state; - platform: template id: hours_green_output type: float write_action: - lambda: |- id(hours_green_value) = 255.0 * state; - platform: template id: hours_blue_output type: float write_action: lambda: |- id(hours_blue_value) = 255.0 * state; #========= Minutes =========== - platform: template id: minutes_red_output type: float write_action: lambda: |- id(minutes_red_value) = 255.0 * state; - platform: template id: minutes_green_output type: float write_action: lambda: |- id(minutes_green_value) = 255.0 * state; - platform: template id: minutes_blue_output type: float write_action: lambda: |- id(minutes_blue_value) = 255.0 * state; #========= dots =========== - platform: template id: dots_red_output type: float write_action: lambda: |- id(dots_red_value) = 255.0 * state; - platform: template id: dots_green_output type: float write_action: lambda: |- id(dots_green_value) = 255.0 * state; - platform: template id: dots_blue_output type: float write_action: lambda: |- id(dots_blue_value) = 255.0 * state; time: - platform: sntp id: sntp_time timezone: "Europe/Moscow" servers: - 0.pool.ntp.org - 1.pool.ntp.org - 2.pool.ntp.org light: - platform: rgb name: "${device_name} hours lights" id: 'hours_lights' red: hours_red_output green: hours_green_output blue: hours_blue_output - platform: rgb name: "${device_name} minutes lights" id: 'minutes_lights' red: minutes_red_output green: minutes_green_output blue: minutes_blue_output - platform: rgb name: "${device_name} dots lights" id: 'dots_lights' red: dots_red_output green: dots_green_output blue: dots_blue_output #--------- LED strip ---------------- - platform: fastled_clockless id: led_strip name: "Led strip" internal: True pin: GPIO3 num_leds: 30 chipset: WS2812B rgb_order: GRB effects: - addressable_lambda: name: "${device_name} Time effect" update_interval: 200ms lambda: |- const int ledsInDigitCount = 7; const int digitsCount = 4; int digitsLeds[10][ledsInDigitCount] = { {1,1,0,1,1,1,1}, {0,0,0,1,0,0,1}, {1,1,1,1,1,0,0}, {1,0,1,1,1,0,1}, {0,0,1,1,0,1,1}, {1,0,1,0,1,1,1}, {1,1,1,0,1,1,1}, {0,0,0,1,1,0,1}, {1,1,1,1,1,1,1}, {1,0,1,1,1,1,1} }; int ledOffsets[digitsCount] = {23 , 16, 7, 0}; auto time = id(sntp_time).now(); int colors[4][3] = { {id(hours_red_value), id(hours_green_value), id(hours_blue_value)}, {id(hours_red_value), id(hours_green_value), id(hours_blue_value)}, {id(minutes_red_value), id(minutes_green_value), id(minutes_blue_value)}, {id(minutes_red_value), id(minutes_green_value), id(minutes_blue_value)} }; int values[digitsCount] = {}; values[0] = time.hour / 10; values[1] = time.hour % 10; values[2] = time.minute / 10; values[3] = time.minute % 10; it.all() = Color(0,0,0); if ((time.second % 2) > 0) { it[14] = Color(id(dots_red_value), id(dots_green_value), id(dots_blue_value)); it[15] = Color(id(dots_red_value), id(dots_green_value), id(dots_blue_value)); } for (int valueI = 0; valueI < digitsCount; valueI++) { int ledsOffset = ledOffsets[valueI]; int timeValue = values[valueI]; int *color = colors[valueI]; int *leds = digitsLeds[timeValue]; for (int ledI = 0; ledI < ledsInDigitCount; ledI++) { if(leds[ledI] > 0) { int ledIndex = ledI + ledsOffset; it[ledIndex] = Color(color[0], color[1], color[2]); } } } ```