Dot-Matrix-(A)-DIY User Guide

【User Guide】

1、Press the power switch to turn on.

【Functional interface settings】

Key1 button toggles the display.

After powering on and displaying the logo, press key1 to switch to the default hourglass display interface with a one-minute timer.

Press key1 again to enter time setting mode. The time unit is minutes (maximum 99 minutes, minimum 1 minute). The minimum value displayed can be 00, but pressing key1 will still set it to 1 minute.

It cannot save settings after power failure; you need to reset it after powering on.

-Key1 is used to enter settings and to switch displays after saving the settings.

-Key2 toggles between units and tens digits.

-Key3 is for increasing the number

-Key4 is for reducing numbers

【Schematic diagram】

Dot-Matrix-(A)

TAG： ESP32 ST7789 1.54 inch Passive NFC e-Paper BW Display E-ink Screen No Need Battery Wireless Powered & Data Transfer Raspberry Pi RP2040 DeepSeek XiaoZhi AI Voice Chat Robot BOX ESP32-S3 Development Board 3.5 inch LCD N16R8 Touchscreen Display 6-Axis /Camera /SD Industrial USB to RS485 Converter Core3566104000 Raspberry Pi PICO LoRa USB to CAN Raspberry Pi 4B/5 Industrial UART 2CH RS485 RS232 CAN FD HAT With Case For Installation of guide rails and hanging ESP32-S3 Industrial 8-Channel Controller with WiFi Bluetooth CAN IoT RS485 and RJ45 ETH POE Gyroscope ESP32-P4 DEV-KIT C6 WiFi6 MIPI DSI 7/10.1 inch Display/CSI Camera/Audio Speaker For AI Deepseek Mechanical Keyboard Raspberry Pi 4 Sound Card Xiaozhi AI video tutorial Raspberry Pi PICO Keyboard Bus Servo DC-BUCK-Adapter 7.2V Voltage mini module For SC15/SC09 Servo Raspberry Pi 5 Sound Card RS485 TO Relay STM32 downloader

Cyberpunk LED Matrix Hourglass Gravity Sensor DIY Countdown Timer Clock STEM Educational Soldering Project for Beginners & Adult