ESP32 RS485 Google Sheets Logger
Budget: ₹1,500 – ₹12,500 INR
need a small IoT device built that can read data from a Selec 500 UCI PID controller through its RS-485 Modbus port and send those values automatically to a Google Sheet via Wi-Fi.
The device should:
1. Use an ESP32 board (low-cost, Arduino-compatible).
2. Take input from the RS-485 port of the Selec PID using a MAX485 module.
3. Host a Wi-Fi setup page (so user can enter SSID & password).
4. Send the PID readings (PV, SP, and OP values) every few seconds to a Google Sheet (via a Google Apps Script endpoint).
5. Work on 5V DC or USB power.
6. Be housed in a small project box or DIN rail enclosure for industrial use.
The device should:
1. Use an ESP32 board (low-cost, Arduino-compatible).
2. Take input from the RS-485 port of the Selec PID using a MAX485 module.
3. Host a Wi-Fi setup page (so user can enter SSID & password).
4. Send the PID readings (PV, SP, and OP values) every few seconds to a Google Sheet (via a Google Apps Script endpoint).
5. Work on 5V DC or USB power.
6. Be housed in a small project box or DIN rail enclosure for industrial use.