DIY pitch controller

Ran across this video on youtube... thought it might be interesting... i have enough arduinos laying around that i might give this a try...

https://www.youtube.com/watch?v=gG0X_yIP1oQ

Nice job but his $5 build price looks like an underestimate in current circumstances!
(Farnell quotes £8.50 just for the MPU-6050 chip.)
David

david f wrote:Nice job but his $5 build price looks like an underestimate in current circumstances!
(Farnell  quotes £8.50 just for the MPU-6050 chip.)
David

yep, one of my favorite go to places has them on a breakout board for $7.00, but another has them for $32!!!

I do have a drawer full of arduino micro pros...   i am thinking that i might give it a try when i get some free time.  the nice thing about DIY is that i can add features that no-one else seems to think are important.


To be honest, the most interesting thing i got from that video was the arduino "ServoInput" library. I never knew that existed, it would clean up quite a lot of my different projects, it should reduce the amount of code i have to write by about 40 lines.

david f wrote:Nice job but his $5 build price looks like an underestimate in current circumstances!
(Farnell  quotes £8.50 just for the MPU-6050 chip.)
David

GY-521 3 Axis Accelerometer Gyroscope module for Arduino MPU-6050 @ Cricklewood Electronics = £3.00 ex delivery - I guess they have not revalued their stock...

https://www.cricklewoodelectronics.com/GY-521-3-Axis-Accelerometer-Gyroscope-module-for-Arduino-MPU-6050.html

Regards
Jonathan

The following may be of some use - if nothing else it might save you from a few more grey hairs!!!

Unless I have picked up the wrong end of the stick completely - it appears that some of the main core mpu6050 Arduino libraries do not work without an amendment to the code.

I admit this seems very odd ....

You can only communicate with the mpu6050 once it has been "woken up" which you do by set the " PWR_MGMT_1 register" to zero

Code:

Wire.beginTransmission(MPU_addr);
Wire.write(0x6B);  // PWR_MGMT_1 registe
Wire.write(0);     // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);

I spent ages with the main mpu6050 library from github and assumed I had a dead chip when nothing worked. I then downloaded another library (mpu6050 light) and the device sprung into life immediatley.

Libraries
Struggled with this one without amended code - https://github.com/ElectronicCats/mpu6050

This fired up first time - https://github.com/rfetick/MPU6050_light

Hope this may be of some use

Regards
Jonathan