Hi,
The specifications on ADXL345 Triple Axis Accelerometer (GY-291) | 018-GY-291 | Core Electronics Australia refers to “Module supply voltage range: 4.0 V to 6 V”, however, Analog Devices in their specs for ADXL345 Supply voltage range: 2.0 V to 3.6 (https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL345.pdf). looking at similar modules on the Internet there seems to be two sets of competing voltage - 4V to 6V or the 2V to 3.6V - for example Sparkfun equivalent module is 2V-3.6V.
What is the correct input voltage for this module ??? - the reason I ask is that the intended Microcontroller is 3.3V so ideally it would connect directly to the Vcc on the module.
Thank you.
4 Likes
Hi Yaron,
Welcome!
Given the price point of this one I don’t think there would be a lot of documentation around on the internet, it does however look like there’s an onboard regulator to bring the Vin pin to a higher range
Could you swap out the ADXL345 for an MPU6050 or another IMU? https://core-electronics.com.au/catalogsearch/result/?q=mpu6050
3 Likes
Thank you. I will check if not too late to swap out but I suspect it is.
2 Likes
Hi Yaron,
Even if it is if you have a soldering iron and want to have a stab at doing some modifications you could probe around to find the 3.3v output and short it to Vin.
2 Likes
Great idea. Thank you.
2 Likes
