49E Hall Sensor LM393 Linear Hall Effect Sensitivity Detection Module (Hall Sensor and Jumper Wire) by MUZHI

The media could not be loaded. I use this with a ESP8266 Wi-Fi module as a wireless switch used in broadcast automation. When the sensor detects a change the Powershell script switched the input in the video switch. Very cool. $20 for both esp8266 and two of these shall sensors. It really Amazon this iOT world we live in.

Good place to start in the education process for the 49E device. With the addition of the LM393, you can better see how the 49E works in both analog and level sensing for binary outputs.

Since the 49E has a max VCC of 6.5V, it cannot operate on 12V. Otherwise it is a great product.

Works well for my purposes, couldn’t really get the trim potentiometer to work and there’s not really instructions but it’s easy enough to use if you’re familiar with components

This was another great Arduino sensor. I used the following for connecting it to Arduino Uno:VCC (needs 5V), GND to GND, AOUT - Analog out (to A0) and DOUT - Digital out (to 2 on the digital side)This is an example sketch you can use (you can find several from Google search)://A0 used with analog output, D2 with digital output#define Hall_Sensor A0#define Hall_Sensor_D 2//Here you can store both values, the Val2 can be booleanint Val1=0,Val2=0;void setup() {Serial.begin(9600);pinMode(Hall_Sensor_D,INPUT);}void loop() {//We read both values and display them raw on the serial monitorVal1=analogRead(Hall_Sensor);Serial.print("Analog: " + (String)Val1);Val2=digitalRead(Hall_Sensor_D);Serial.print("\t");Serial.println("Digital: " + (String)Val2);delay(1000);}And when you open the Serial Monitor you might see data like this. I had a common ceramic magnet that I brought close to the sensor and turned it in different directions:Analog: 611 Digital: 0Analog: 612 Digital: 0Analog: 525 Digital: 1Analog: 517 Digital: 1Analog: 533 Digital: 1Analog: 600 Digital: 0Analog: 524 Digital: 1Analog: 524 Digital: 1All in all, great little sensor.