• Description

GY-91 Multi Sensor Board (MPU-6500 + BMP280)

For sale is a fully operational GY-91 multi-sensor breakout board, perfect for flight tracking, drones, model rocketry, and robotics projects.

Please note: While this board layout is traditionally labeled as an MPU-9250 on the circuit board silkscreen, testing confirms the motion chip runs on the MPU-6500 architecture and does not include an active magnetometer (compass).

Quick Spec

• Sensing: 6-DOF motion and environment
• Motion Sensor: MPU6500 6-axis IMU
• Pressure Sensor: BMP280 barometric + temperature sensor
• Accelerometer: Three-axis, up to ±16 g
• Gyroscope: Three-axis, up to ±2000°/s
• Pressure Range: 300–1100 hPa
• Communication: I²C
• Supply Voltage: 3–5 V through VIN
• Board Dimensions: 14 × 20 mm

Dimensions

Sample Code

#include <WiFi.h> #include <WiFi.h> #include <WebServer.h> #include <Wire.h> #include <MPU9250_asukiaaa.h> #include <Adafruit_BMP280.h> // --- Network Credentials --- const char* ssid = "SSID"; const char* password = "Password"; WebServer server(80); MPU9250_asukiaaa motionSensor; Adafruit_BMP280 barometer; // Global structure holding all active sensor data parameters struct SensorTelemetry { float accX, accY, accZ; float gyroX, gyroY, gyroZ; float temp, pres, alt; } dataLog; // HTML Dashboard Generator void handleRoot() { String html = "<!DOCTYPE html><html><head><meta charset='UTF-8'>"; html += "<meta http-equiv='refresh' content='1'>"; // Refresh web dashboard every 1 second html += "<title>GY-91 Live Web Dashboard</title>"; html += "<style>"; html += "body { font-family: 'Segoe UI', Arial, sans-serif; background-color: #f0f2f5; margin: 40px; color: #222; }"; html += "h1 { color: #0f172a; margin-bottom: 5px; }"; html += ".subtitle { color: #64748b; margin-bottom: 25px; font-size: 14px; }"; html += ".grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }"; html += ".card { background: white; padding: 20px; border-radius: 12px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); border-top: 5px solid #3b82f6; }"; html += ".card.env { border-top-color: #10b981; }"; html += ".card h3 { margin-top: 0; color: #1e293b; border-bottom: 1px solid #e2e8f0; padding-bottom: 8px; font-size: 16px; text-transform: uppercase; }"; html += ".data-row { display: flex; justify-content: space-between; margin: 10px 0; font-size: 15px; }"; html += ".val { font-weight: bold; color: #1e3a8a; }"; html += "</style></head><body>"; html += "<h1>GY-91 Telemetry Web Server</h1>"; html += "<div class='subtitle'>Live data broadcast directly from ESP32 microcontroller instance.</div>"; html += "<div class='grid'>"; // Card 1: Accelerometer html += " <div class='card'>"; html += " <h3>Accelerometer (g)</h3>"; html += " <div class='data-row'><span>Axis X:</span><span class='val'>" + String(dataLog.accX, 2) + " g</span></div>"; html += " <div class='data-row'><span>Axis Y:</span><span class='val'>" + String(dataLog.accY, 2) + " g</span></div>"; html += " <div class='data-row'><span>Axis Z:</span><span class='val'>" + String(dataLog.accZ, 2) + " g</span></div>"; html += " </div>"; // Card 2: Gyroscope html += " <div class='card'>"; html += " <h3>Gyroscope (°/s)</h3>"; html += " <div class='data-row'><span>Roll Rate (X):</span><span class='val'>" + String(dataLog.gyroX, 1) + " °/s</span></div>"; html += " <div class='data-row'><span>Pitch Rate (Y):</span><span class='val'>" + String(dataLog.gyroY, 1) + " °/s</span></div>"; html += " <div class='data-row'><span>Yaw Rate (Z):</span><span class='val'>" + String(dataLog.gyroZ, 1) + " °/s</span></div>"; html += " </div>"; // Card 3: Atmospheric Environmentals html += " <div class='card env'>"; html += " <h3>Barometer & Climate</h3>"; html += " <div class='data-row'><span>Temperature:</span><span class='val' style='color:#059669;'>" + String(dataLog.temp, 1) + " °C</span></div>"; html += " <div class='data-row'><span>Pressure:</span><span class='val'>" + String(dataLog.pres, 1) + " hPa</span></div>"; html += " <div class='data-row'><span>Est. Altitude:</span><span class='val'>" + String(dataLog.alt, 1) + " m</span></div>"; html += " </div>"; html += "</div>"; // End Grid html += "</body></html>"; server.send(200, "text/html", html); } void setup() { Serial.begin(115200); while(!Serial) { delay(10); } Serial.println("\n\n========================================="); Serial.println(" ESP32 BOOT INITIALISATION "); Serial.println("========================================="); Wire.begin(21, 22); delay(1000); // Initialize Sensors motionSensor.setWire(&Wire); motionSensor.beginAccel(); motionSensor.beginGyro(); barometer.begin(0x76); Serial.println("[OK] Integrated GY-91 hardware modules linked."); // Establish Wireless Connection Serial.print("Connecting to Wi-Fi network: "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } // Boot complete info print block Serial.println("\n\n========================================="); Serial.println(" WI-FI CONNECTED SUCCESSFULLY! "); Serial.println("========================================="); Serial.print(" SSID : "); Serial.println(ssid); Serial.print(" ESP32 IP : "); Serial.println(WiFi.localIP()); Serial.print(" BROWSER URL : http://"); Serial.println(WiFi.localIP()); Serial.println("=========================================\n"); server.on("/", handleRoot); server.begin(); } void loop() { server.handleClient(); // Pull fresh register values into our code scope motionSensor.accelUpdate(); motionSensor.gyroUpdate(); // Populate global data log structure dataLog.accX = motionSensor.accelX(); dataLog.accY = motionSensor.accelY(); dataLog.accZ = motionSensor.accelZ(); dataLog.gyroX = motionSensor.gyroX(); dataLog.gyroY = motionSensor.gyroY(); dataLog.gyroZ = motionSensor.gyroZ(); dataLog.temp = barometer.readTemperature(); dataLog.pres = barometer.readPressure() / 100.0F; dataLog.alt = barometer.readAltitude(1013.25); delay(30); } //Please Note: //Gyroscope readings are rotation rates, not angles. //Altitude is estimated from pressure. 1013.25 is a standard sea-level pressure assumption. //This is a telemetry demonstration. It does not implement flight tracking, drone control or rocket data logging.

Shipping List

• 1x 6-DOF Sensor + Barometer Sensor Module
• 1x 8-Pin Male Header

GY-91 Multi Sensor Board (MPU-6500 + BMP280)

• Brand: Generic
• Product Code: MPU9250-BMP280
• Weight: 0.002kg
• Product Status : Active

Stock

Warehouse	Stock Status	Location
Centurion	In Stock	EE112
Stellenbosch	In Stock	B0073
Bulk Location	No Stock

We ship free of charge between branches to complete your order.

• R98.00 (Inc Tax: R112.70)