ES32A08 DC 12V 24V Multifunction ESP32 Expansion Board Wifi Digital Analog IO Module for Arduino WEB MQTT Ethernet Network DIY

color : black,blue,indigo,red,silver,white

Desciption : 

Note!!!  PWR LED does not light up when powered on. Driven by the IO port of the ESP32

Product Features:

1 Working voltage: DC 12V-24V

2 Working Current : Standby current (Digital tube OFF) 15MA, Standby current 50MA (Digital tube ON), 1 relay open 76MA, 2 relays open 107MA, ... 8 relays open 292MA

3 On-board resources: 1x RS485 Interface 8x opto-isolated inputs (low level trigger, NPN type), 4x 0/4-20MA Current Input,4x 0-5V/10V Voltage Input,4x buttons, 1x 4 bit digital tube display, 1x ESP32 slots, 8x relay outputs

ES32A08(Relay Module):

Size 180*72*20mm(Only Board)

Weight : 189g(Only Board), 317g(with shell)

ES33B08(Darlington tube Module):

Size 123*72*20mm(Only Board)

Weight : 93g(Only Board), 184g(with shell)

Please contact me for more information!

Purchase Notes:

1 ES32A08/ES33B08 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

2 This is an expansion board based on 38PIN ESP32. We only provide three vscode codes for testing the hardware. More codes and functions need to be developed by yourself.

3 If you need more functionality, write your own code. We do not provide additional code and technical support

4 The acquisition accuracy of analog quantities is determined by the ESP32 board. It is recommended to collect multiple times to obtain the average value.

Application examples:

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

home automation/Smart home DIY

RS485 Master-Slave Device(PLC MCU),

4x 0/4-20MA Current Collection,

4x 0-5V/10V Voltage Collection,

Motor forward and reverse,

Timing ON/OFF

Power-up Delay,

Trigger delay,

Infinite loop delay,

A finite number of cyclic delays,

Power sequencer,

And so on.

Application 1: Through the programming of 38Pin ESP32, various delay customization functions can be realized instead of PLC.

Application 2: It can be used as an RS485 master device instead of PLC/PC/touch screen to control various RS485 slave devices.