SPECIFICATIONS

The ESS3H32 is a 16DI-16DO expansion board based on the ESP32 S3 development board. It features an RS485 bus interface, 16 NPN input ports, and 16 opto-isolated MOSFET output ports. It is suitable for applications requiring quiet operation or high-speed switching, such as PWM LED dimming and low-power motor speed control.

Note: ESP32 S3 board is not included!!!
Please contact me for more detailed information.

Product Features:
1 Operating voltage: Wide voltage DC 7-30V
2 Operating Current : 60-80MA(ESP32 S3 standby power consumption)
3 16CH NPN Optoelectronic isolation input port(supports 3-24V level)
4 16CH NPN 3A MOS output(DC 3-30V),Support PWM control.
5 Configurable onboard LED/Buttons,Lead out the remaining IO ports
6 Size : 180*72*13mm(Only Board),193*83*19mm(With DIN Box)
7 Weight : 96g(Only Board), 222g(With DIN Box)

16-channel NPN 3A MOS output:
1. Optically isolated MOS control
2. With a freewheeling diode, the MOS can drive inductive loads
3. Supports PWM control for LED dimming (PWM cannot exceed 8 channels)
4. PWM frequency: 200-2000 Hz
5. MOS drive current: DC 3.3-4.5V <2A; DC 4.5-8V <4A; DC 8-30V <5A
6.The MOS model is 30N06. The output driver does not have overcurrent and overvoltage protection. If the MOS is burned out, please use a TO252 package 30N06 to replace it.

Onboard Resources:
16CH NPN Digital Input
16CH 3A MOS Output
1CH LED
1CH Button
12CH Free Port
1CH RS485 Port


As long as you write ESP32 code,You can use it to achieve a variety of delay timer function,such as:
8CH PWM 3A 5-24V LED Dimming
WIFI Remote control switch
RS485 Master-Slave Device(PLC MCU),
MQTT,HTTP,WEB Remote control switch
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 44PIN ESP32 S3. We only provide some Arduiuo 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:
1 ESS3H32 can not work independently, must be under the control of the 44PIN ESP32 S3 board to work,If you do not have a 44PIN ESP32 S3 board, purchase it separately or purchase a kit with 44PIN ESP32 S3
2 Since the ESP32-S3 has only 8 general-purpose timers, a maximum of 8 PWM ports can be configured at a time.
3 When using the output port,The MV1+/MV1- MV2+/MV2- MV3+/MV3- MV4+/MV4- port should be connected to a power source (DC 5-30V)