bengineer19 / buckpsu Goto Github PK

Not connecting via serial to the raiser module, but replacing it.

https://github.com/rin67630/Drok-Juntek-on-steroids

Enjoy!

I'm making a MPPT solar pump controller using a Drok buck PSU (200310) controlled with a UNO R3, as shown in the drawing at https://sidtupper.ca/wiring%20UNO%20R3%20to%20200310.jpg, and using the BuckPSU library. I'm stalled at not being able to communicate with the PSU. Running the library example, on a logic analyzer I can see that commands are getting to the PSU Rx pin but nothing is coming back on the Tx pin. I've tried obvious stuff like swapping Tx / Rx and various baud rates (9600 vs 4800) without success. I'd really appreciate hints on how to get past this.

Hi your buck converter looks exactly like that one:

DKP6012 DC-DC CNC step-down module
Technical Parameters

Input voltage range: 10V to 75V
Output voltage adjustment range: 0-60V
Output current adjustment range: 0～12A  Output power:0-720W
Output voltage setting resolution: 10mV
Output current setting resolution: 10mA
Power Effect: CV less than 0.5% +10mV CC less than 1% +10mA
Load effect: CV less than 0.5% +10mV CC less than 1% +10mA
Output Ripple: < 50mVpp (Input 54V, Output 12V, Current 5A)
100Hz fluctuation transmission ratio: <1/10000
Typical efficiency: 94% (input 54V, output 30V, current 5A)
Voltage and current display accuracy: 10mV, 10mA
Voltage display error: ±1%+20mV
Current display error: ±2%+20mA
Response time: <50ms
Storage operation: M0 ~ M9 a total of 10 sets of parameter storage
Heat dissipation: Onboard radiator, air-cooled
Operating environment temperature: 0 ~ 40 °C
Storage environment temperature: -20 ~ 70 °C
Use environment: indoor use design, maximum humidity 80%
Size (length × width × height): 101 × 75 × 48 (mm)

Yeeco seems to be a seller name, I had to spend some time until I found your hardware under its usual name.
DROK is another reseller for these modules, being more common.

Apparently there is a "baby" version available as well:
DKP6008 DC-DC step-down buck module
with similar characteristics, just with 8A max current and only 65V max input.