hi hardwario,
I wanted to start to connect & use the ultrasonic sensor,
Ultrasonic sensor, 2m cable - HARDWARIO Shop
equipped with MB7066 XL-MaxSonar-WRL1 – MaxBotix
but I couldn’t find the available documentation.
From the product image I derive:
- connection to the sensor module:
A: Yellow
GND: Red
VDD: Black
- firmware: hardware/twr-radio-maxbotix-ultrasound-distance: v1.0.0
Is it right❓
Radim
Hi,
you’re right, it is not explained clearly.
The firmware is right, it reports measurement every 15 minutes
I’ve improved README in the Maxbotix Radio project, added wire colours
I’m copying it here
Maxbotix connection
Sensor Module pin Maxbotix pin Wire color
------------------------------------------------------
A (pulse in) 2 (pulse out) Yellow
GND GND Black
VCC V+ Red
The wire is added by us. On the sensor in the enclosure there is V+, GND pins and for the data signal the pin 2 is used.
In the product photo in our shop, there is a picture with a Sensor Module connector which is connected correctly.
![image](https://forum.hardwario.com/uploads/default/original/1X/db22e53826165c1a0bab3bc7b53fef0977ce2fc4.png)
Sensor datasheet
So in your previous post you have swapped VDD/GND, make sure the VDD is RED and GND is BLACK.