Thank you for your help, I started learning programming a few months ago and have been pretty successful at solving most problems, but cant get past this one.
I am working on controlling 4 NEMA17 Bipolar Stepper Motors through a webserver via an esp32 board. Each Stepper motor is controlled by their own A4988 drivers. I have 5 simple functions and controls: FORWARD, LEFT, RIGHT, REVERSE, and STOP. From the start, the Stepper motors will spin without any input from the called functions. They do however respond to the functions for FORWARD, REVERSE, LEFT and RIGHT, but they will not respond to STOP. I am looking for a fix for those two issues. Why the Stepper Motors are already running before being called to, and why is my STOP function not stopper the Stepper Motors.
Thank you again for your help and responses!
#ifdef ESP32
#include <WiFi.h>
#include <AsyncTCP.h>
#endif
#include <ESPAsyncWebServer.h>
#include <AccelStepper.h>
// REPLACE WITH YOUR NETWORK CREDENTIALS
const char* ssid = "**********";
const char* password = "***********";
// Define pin connections
int Sleep = 15; //GPIO15---D15 of Nodemcu-Control Sleep Mode on A4988
int M1Step = 35; //GPIO35---D35 of Nodemcu--Step of stepper motor driver
int M1Dire = 34; //GPIO34---D34 of Nodemcu--Direction of stepper motor driver
int M2Step = 5; //GPIO5---D5 of Nodemcu--Step of stepper motor driver
int M2Dire = 18; //GPIO18---D18 of Nodemcu--Direction of stepper motor driver
int M3Step = 19; //GPIO19---D19 of Nodemcu--Step of stepper motor driver
int M3Dire = 21; //GPIO21---D21 of Nodemcu--Direction of stepper motor driver
int M4Step = 22; //GPIO22---D22 of Nodemcu--Step of stepper motor driver
int M4Dire = 23; //GPIO23---D23 of Nodemcu--Direction of stepper motor driver
// Define motor interface type
#define motorInterfaceType 1
// Creates an instance
AccelStepper myStepper1(motorInterfaceType, M1Step, M1Dire);
AccelStepper myStepper2(motorInterfaceType, M2Step, M2Dire);
AccelStepper myStepper3(motorInterfaceType, M3Step, M3Dire);
AccelStepper myStepper4(motorInterfaceType, M4Step, M4Dire);
// HTML web page
const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE HTML><html>
<head>
<title>FoxBot Control</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body { font-family: Arial; text-align: center; margin:0px auto; padding-top: 30px;}
.button {
padding: 10px 20px;
font-size: 24px;
text-align: center;
outline: none;
color: #fff;
background-color: #2f4468;
border: none;
border-radius: 5px;
box-shadow: 0 6px #999;
cursor: pointer;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
-webkit-tap-highlight-color: rgba(0,0,0,0);
}
.button:hover {background-color: #1f2e45}
.button:active {
background-color: #1f2e45;
box-shadow: 0 4px #666;
transform: translateY(2px);
}
</style>
</head>
<body>
<h1>FoxBot Web Server</h1>
<p>
<button class="button" onmousedown="toggleCheckbox('forward');" ontouchstart="toggleCheckbox('forward');" onmouseup="toggleCheckbox('stop');" ontouchend="toggleCheckbox('stop');">FORWARD</button>
</p>
<p>
<button class="button" onmousedown="toggleCheckbox('left');" ontouchstart="toggleCheckbox('left');" onmouseup="toggleCheckbox('stop');" ontouchend="toggleCheckbox('stop');">LEFT </button>
<button class="button" onmousedown="toggleCheckbox('right');" ontouchstart="toggleCheckbox('right');" onmouseup="toggleCheckbox('stop');" ontouchend="toggleCheckbox('stop');">RIGHT</button>
</p>
<p>
<button class="button" onmousedown="toggleCheckbox('reverse');" ontouchstart="toggleCheckbox('reverse');" onmouseup="toggleCheckbox('stop');" ontouchend="toggleCheckbox('stop');">REVERSE</button>
</p>
<p>
<button class="button" onmousedown="toggleCheckbox('stop');" ontouchstart="toggleCheckbox('stop');" onmouseup="toggleCheckbox('stop');" ontouchend="toggleCheckbox('stop');">STOP</button>
</p>
<script>
function toggleCheckbox(x) {
var xhr = new XMLHttpRequest();
xhr.open("GET", "/" + x, true);
xhr.send();
}
</script>
</body>
</html>)rawliteral";
void notFound(AsyncWebServerRequest *request) {
request->send(404, "text/plain", "Not found");
}
AsyncWebServer server(80);
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
if (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.println("WiFi Failed!");
return;
}
Serial.println();
Serial.print("ESP IP Address: http://");
Serial.println(WiFi.localIP());
myStepper1.setMaxSpeed(1000);
myStepper2.setMaxSpeed(1000);
myStepper3.setMaxSpeed(1000);
myStepper4.setMaxSpeed(1000);
// Send web page to client
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/html", index_html);
});
// Receive an HTTP GET request for Output 12
server.on("/forward", HTTP_GET, [] (AsyncWebServerRequest *request) {
myStepper1.setSpeed(200);
myStepper2.setSpeed(200);
myStepper3.setSpeed(200);
myStepper4.setSpeed(200);
myStepper1.runSpeed();
myStepper2.runSpeed();
myStepper3.runSpeed();
myStepper4.runSpeed();
request->send(200, "text/plain", "ok");
});
// Receive an HTTP GET request for Output 14
server.on("/left", HTTP_GET, [] (AsyncWebServerRequest *request) {
myStepper1.setSpeed(-200);
myStepper2.setSpeed(200);
myStepper3.setSpeed(-200);
myStepper4.setSpeed(200);
myStepper1.runSpeed();
myStepper2.runSpeed();
myStepper3.runSpeed();
myStepper4.runSpeed();
request->send(200, "text/plain", "ok");
});
// Receive an HTTP GET request for Output 27
server.on("/right", HTTP_GET, [] (AsyncWebServerRequest *request) {
myStepper1.setSpeed(200);
myStepper2.setSpeed(-200);
myStepper3.setSpeed(200);
myStepper4.setSpeed(-200);
myStepper1.runSpeed();
myStepper2.runSpeed();
myStepper3.runSpeed();
myStepper4.runSpeed();
request->send(200, "text/plain", "ok");
});
// Receive an HTTP GET request for All Output's
server.on("/reverse", HTTP_GET, [] (AsyncWebServerRequest *request) {
myStepper1.setSpeed(-200);
myStepper2.setSpeed(-200);
myStepper3.setSpeed(-200);
myStepper4.setSpeed(-200);
myStepper1.runSpeed();
myStepper2.runSpeed();
myStepper3.runSpeed();
myStepper4.runSpeed();
request->send(200, "text/plain", "ok");
});
// Receive an HTTP GET request for All Output's
server.on("/stop", HTTP_GET, [] (AsyncWebServerRequest *request) {
myStepper1.stop();
myStepper2.stop();
myStepper3.stop();
myStepper4.stop();
request->send(200, "text/plain", "ok");
});
server.onNotFound(notFound);
server.begin();
}
void loop() {
}
