SlipPump Arduino Library

Control a Kamoer DIP1500 V2 peristaltic pump over RS485 using Modbus RTU.

Features

• Forward / backward rotation
• Adjustable RPM

Requirements

• ESP32 or compatible board (e.g. SparkFun ESP32 ThingPlus)
• MAX485 RS485 transceiver module
• Kamoer DIP1500 V2 peristaltic pump
• ModbusMaster Arduino library

Wiring

Pump 9-pin Control Port

Connect to RS485 A/B and GND lines as follows:

Pump Pin	Function	Connects To
2	RS485 B	MAX485 B
3	RS485 A	MAX485 A
6 or 8	Signal GND	ESP32 GND / MAX485 GND

MAX485 ↔ ESP32 Wiring

MAX485 Pin	Connects To ESP32
VCC	3.3V
GND	GND
RO	RX pin (e.g. GPIO 33)
DI	TX pin (e.g. GPIO 32)
DE/RE	Control pin (e.g. GPIO 5)
A/B	To Pump Pins 3/2

Note: Tie DE and RE together and control both with one GPIO.

Pump Configuration (Via Menu)

Ensure the following settings on the pump display:

• C006: Set to RS485 mode
• C012: Modbus address = 1
• C013: Baud rate = 9600 (option 3)

Example

#include <SlipPump.h>

SlipPump pump(1, Serial1, 5, 32, 33); // address, serial, DE/RE, TX, RX

void setup() {
  Serial.begin(115200);
  pump.init();
  pump.forward(100);
}

void loop() {
  // your loop code
}