[francois]

Hello,

Very good thing to develop a dedicated pcb for autosteer.
(I've done it on a veroboard with 12 V DCDC - BNO055 - MMA8251 - ADS1115 - PWM drivers around the nano, and this is a nightmare)

Take a chinese 3 V or 5 V DCDC suply, it can handle up to 40 V at the input. Of course add Shotkky diod (or MOSFET) for reverse polarity and fuse.

For the ADS1115, I've made two differential measurements
One for measuring the supply (ADS1115 max analog input is VDD + 0.3)
The other one is differential : one input connected to the steering potentiometer the other one at the middle point of a resistor divider (so offset is near 0)

If you can share a drawing of the schematic, I'm interested.

Best regards
francois

 

[francois]

Hello Tooki,

I'm located in north of France and I'm particulary interested in your configuration.
My system start to work properly and is quite reliable but I think I can improve it, here it is :
It work without any connection, all bluetooth or Wifi

Fixed base at house :
NeoM8T + Antenna Ublox ANN-MS + Raspbery Pi0W (running strstr for transmission to rtk2go.com)
-> which measurement rate do you use (1 Hz for me)
-> which satellites
-> have you enabled SBAS
-> which antenna do you use

GPS receiver on tractor
My mobile phone configured as a bluetooth access point sharing internet (for access to rtk2go)

NeoM8T + Antenna Ublox ANN-MS + Raspbery Pi0W (Connected in Bluetooth to the mobile and Wifi Access point for AOG and Autosteer, running rkrcv
it generates the NMEA UDP frame for AOG)
-> which antenna do you use
-> which measurement rate do you use (10 Hz for me)
-> any specific configuration (I've enable Gloarr mode (On) in rtkrcv)

PC with AOG

Autosteer
WAS(Mercedes/BMW type) + ADS1115 + BN055 + MMA8541 + Arduino Nano + IBT2 + Drill motor + ESP8266 (Wifi UDP to serial bridge between arduino and AOG on PC)
(On the arduino, I've connected the ESP on a virtual serial port (NeoSwSerial) so I've the USB existing one available for programming and online debugging which is very helpful)
-> Which motor do you use
-> Any specific configuraion

If you can help me in these small things ?
If you're interested in more details, don't hesitate to ask me
Best regards from France
Francois

 

[francois]

Thank you very much for all these details, I'll check and tune on my side.

For all the parts, I've only wires to supply but no serial or USB cable between GPS, PC, IMU etc ...

francois