Modbus RTU IO 8CH Factory Reset Tutorial

Hardware Operation

Open the casing, hardware connection diagram:

Software Operation

Using Securecrt: (Download Link: https://www.waveshare.com/w/upload/b/b7/SecureCRT.7z)
Use SecureCRT to connect to the serial port, with the default settings of 115200 baud rate, N, 8, 1. Make sure not to select XONXOFF, and choose a Ymodem packet size of 1024 bytes.

Before powering on, short the SWDIO and GND pins to enter the bootloader program.
Once the bootloader program runs, the following interface will be displayed. The program starts with the LED constantly on, detecting the SWDIO pin. If shorted, it enters the bootloader program and the LED remains constantly on. If not shorted, it jumps to the user program, and the LED slowly blinks. If the user program fails to start, the LED will blink rapidly, indicating the need to re-download the user program.

When the above interface appears, select:

Here, we directly choose option 2 to Restore device default parameters.

TAG： Serial UART Bus Servo ST3025 TTL 40KG.CM Magnetic Encoder 360° High Precision And Large Torque Raspberry Pi 5 ABS Case Tuya AI Voice Robot T5-E1 1.75 inch Round AMOLED TouchScreen GPS For XiaoZhi Development Board HDMI to LVDS Sipeed Tang Primer 25K GW5A RISCV FPGA Development Board Dock SDRAM GW5A-LV25MG121 Retro Game linux Raspberry Pi 5 / 4B UPS With PD Trigger Activation Uninterruptible Power Bank Supply 9600mAh 5V/5A 25W Also For Phone/Mini Computer PC Jetson Nano 1.54inch OLED ESP32 Development Board WiFi+Bluetooth Ultra Low Power Dual Core ESP 32S ESP 32 Similar ESP8266 Raspberry Pi 5 Fan UGV Rover PT AI OpenCV Robot Car MediaPipe For Raspberry Pi Jetson Raspberry Pi Pico 2 RP2350A USB-C Mini Development Board Jetson 64MP Camera Industrial USB TO RS232/485 (C) UART FT232RNL 2m For 3.3V / 5V For Switchable RS232/RS485 Raspberry Pi LCD Capacitive TouchScreen Display HDMI 6.25inch 720x1560 ESP32‑S3 LoRa Development Board with LR1121 3rd Generation RF Chip USB Stamp Hole ESP32-S3 AI Camera 3.5inch LCD Dual MIC Development Board MINI TV BOX Display 3.5 inch Voice Interruption Object Recognition 10-in-1 Multifunctional Raspberry Pi PICO Raspberry Pi 3 LCD HAT Raspberry Pi 10.1 inch QLED Quantum Dot Display 1280x720 Capacitive Touchscreen For Computer PC/Jetson/Game

RDK X5 Acrylic Case Black chassis with heat dissipation holes

TAG： Raspberry Pi AI Recognition Camera 3MP ISX031 123° Wide Angle For Jeston Raspberry Pi 5 / 4B UPS With PD Trigger Activation Uninterruptible Power Bank Supply 5V/5A 25W Also For Phone/Mini Computer PC Milk-V Duo Raspberry Pi CAN Analyzer ESP32-S3 Industrial 8-CH Relay IOT LAN WiFi /Bluetooth /RS485 /RJ45 Ethernet /POE Pi5-Pcie-Fish-Board X1011 Raspberry Pi 5 PCIe M.2 NVMe 4-Ports SSD Pi5 Four-Times 2280 Milk-V Raspberry Pi Industrial 10.1 inch HMI LCD TouchScreen Display 1280x800 Raspberry Pi Pico 2 RP2350 RP2350B-Plus-W Development Board WiFi Bluetooth Radio Module 2 Serial Server 5inch USB Monitor Zero LCD HAT (A) Raspberry Pi Buzzer Case For VisionFive2 Lite Cooling Enclosure Aluminum Alloy Material Cooling Fan With Camera Mount RP2040 USB IR Infrared Thermal Imaging Camera B Arducam UNO R4 WiFi