I also have an article on How To Drive a Stepper Motor using the A4988 driver and ESP32 if you want to work with an ESP32 microcontroller instead.
TB6600 Stepper Motor Driver with Arduino Tutorial.How to control a Stepper Motor with Arduino Motor Shield Rev3.28BYJ-48 Stepper Motor with ULN2003 Driver and Arduino Tutorial.How to control a stepper motor with DRV8825 driver and Arduino.If you would like to learn more about other stepper motor drivers, then the articles below might be useful: This library is fairly easy to use and can greatly improve the performance of your hardware.Īfter each example, I break down and explain how the code works, so you should have no problems modifying it to suit your needs. I have included a wiring diagram, a tutorial on how to set the current limit and many example codes.Īlthough you can use this driver without an Arduino library, I highly recommend you also take a look at the example code for the AccelStepper library at the end of this tutorial. USE_SERIAL.This article includes everything you need to know about controlling a stepper motor with the A4988 stepper motor driver and Arduino. USE_SERIAL.printf(" Connected from %d.%d.%d.%d url: %s\r\n", num, ip, ip, ip, ip, payload) USE_SERIAL.printf(" Disconnected!\r\n", num) USE_SERIAL.printf("webSocketEvent(%d, %d.
Void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) Var e = document.getElementById('ledstatus') Ĭonst int relay = 4 //gate open/close relay pinĬonst int powerOn = 5 //power to motor relay pinĬonst int closedLimitSwitch = 14 // limit switch for closed positionĬonst int OpenLimitSwitch = 12 //Limit switch for open position Static const char PROGMEM INDEX_HTML = R"rawliteral( WebSocketsServer webSocket = WebSocketsServer(81) Gate switch rec_schem.jpg 2667x1314 315 KB I often make glaringly obvious mistakes:unamused: and so I would appreciate anyone casting an eye over the schematic and commenting or suggesting changes. I will probably use an existing solar charge controller for this as I already have one. I intend to supply power via a 12v gel battery and use a solar panel to maintain charge. One relay is a spdt to connect power to operate the dc motor and the other is DPDT to change direction of rotation of the motor. I intend to use an ESP8266-12 as the processor which will read the state of two limit switches and operate two relays via 8050 transistors. I then open a browser and control the gate via a web interface. The gate is beyond the reach of my wifi network so it will be an access point which hopefully my phone will automatically connect to as I approach the gate. I have made my own linear actuator using a motor from a cordless drill and a worm drive. I am hoping to control a linear actuator via wifi to open and close a farm gate.
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