Search found 5 matches

by hoahoctro
Tue Mar 24, 2020 4:28 pm
Forum: Hardware
Topic: ESP32 and DRV8833 control
Replies: 0
Views: 2673

ESP32 and DRV8833 control

Anyone has tried using dual DRV8833 ? Im making an RC car, diagram shown as picture, i write a motor lib myself, but it seems there is something wrong, 1 side run faster (image 1 side run with pwm 255 and 1 side is just 100-150) than the other, and if i disconnect 1 DRV8833, the other stop running t...
by hoahoctro
Fri Oct 25, 2019 4:17 pm
Forum: General Discussion
Topic: Set own names for BLE Service and BLE Characteristic
Replies: 1
Views: 7740

Set own names for BLE Service and BLE Characteristic

Hi How can i set own name for a BLE Service and BLE characteristic using ESP32 lib (nkolban), example: "This's my service", "This's my char" ? Docs found just say about default BLE Service/Characteristic names provided from bluetooth.com, if i create a service/characteristic with my own UUID, the na...
by hoahoctro
Sun Sep 22, 2019 4:53 pm
Forum: General Discussion
Topic: Check and install needed espressif32 boards version in platformio
Replies: 0
Views: 1740

Check and install needed espressif32 boards version in platformio

Does anyone use platformio in sublime text ?, how to check espressif32 boards version included (example: 1.0.3, 1.0.2, 1.0.1) and choose version we want ?

In Arduino IDE, i can found it in Board Manager and upgrade/downgrade its version, but i dont know how to do in platformio
by hoahoctro
Sun Sep 22, 2019 4:02 pm
Forum: General Discussion
Topic: dl_lib.h missing with ESP32 Cam
Replies: 1
Views: 12387

dl_lib.h missing with ESP32 Cam

Im compiling a customized sketch for ESP32 Cam, but the IDE shows error: dl_lib.h: No such file or directory found I have searched but havent had the guide to fix it, please help. Thanks :D I used both these sketch and they all show the dl_lib missing error: https://github.com/gumslone/ESP32-CAM-RC-...
by hoahoctro
Thu Jul 11, 2019 3:50 pm
Forum: Hardware
Topic: ESP32S Node MCU can not blink
Replies: 2
Views: 3566

ESP32S Node MCU can not blink

I bought this board https://www.aliexpress.com/item/32807887667.html?spm=a2g0s.9042311.0.0.6cd64c4dGapEIG (The yellow board, which has only one led onboard) When uploading blink sketch, it doesnt work, but other sketch is ok In this case, which pin is connected to the only led onboard ? :( :( :( :( ...