SPECIFICATIONS

Brand Name: eletechsup

Choice: yes

Condition: New

High-concerned chemical: none

Origin: Mainland China

Type: Relay

is_customized: Yes

semi_Choice: yes

Product List: 1PCS RS485 2AO 2AI 4DI 4DO ESP32 Multifunction Expansion Board Modbus Wifi Relay Module
(According to the version and quantity you have chosen)

Product Features:

1 Operating voltage: DC 12V/DC 24V

2 Operating Current : Standby current (Digital tube OFF) 14MA, Standby current 51MA (Digital tube ON), 1 relay open 76MA, 2 relays open 107MA, 3 relays open 133MA, 4 relays open 166MA

3 On-board resources: 1x RS485 Interface 4x opto-isolated inputs (low level trigger, NPN type), 2x 0/4-20MA Current Input,2x 0-5V/10V Voltage Input,2x 0-5V/10V Voltage Output(OR 2x 0/4-20MA Current Output),1x ESP32 slots,4x relay outputs

4 size 121*72*19mm(Only Board)
5 Weight : 94g(Only Board), 185g(with shell)

For more information, please open the link and download:
https://1drv.ms/u/s!Av4PLxH_z8f1gZEc3rOEgcMbZ-aQCw?e=Mz9Rz0

As long as you write ESP32 code,You can use it to achieve a variety of delay timer function,such as:
WIFI remote control switch
WIFI Current and voltage collection
RS485 Master-Slave Device(PLC MCU),
2x 0-5V/10V Voltage Output(OR 2x 0/4-20MA Current Output)
2x 0/4-20MA Current Collection,
2x 0-5V/10V Voltage Collection,
Motor forward and reverse,
Timing on,
Timing off,
Power-up delay,
Trigger delay,
Infinite loop delay,
A finite number of cyclic delays,
Power sequencer,
And so on.

This is an expansion board based on 38PIN ESP32. We only provide some codes for testing the hardware. More codes and functions need to be developed by yourself.
If you need more functionality, write your own code. We do not provide additional code and technical support

Note: ES32C14 can not work independently, must be under the control of the 38PIN ESP32 board to work,If you do not have a 38PIN ESP32 board, purchase it separately or purchase a kit with 38PIN ESP32