I bought a 12v 3S 18650 battery off Aliexpress and after a lot of tests, im pretty sure it doesnt work, the terminals report 11V, I had a charging module that doesnt charge it at all (0 current drawn), the charging module was able to power my motor, the battery also doesnt power the motor at all. where can I get a 12v 3s 18650 battery 3000mAh or similar? And is it possible to repair this battery?
Hi, I built a sensor board of a temperature sensor and the LSM6DS3TR-C IMU, both communications on I2C. The temperature sensor is found at address 0x48, and the IMU is not found at all (I used a scanner to scan for all addresses). I was wondering if my wiring is correct. Thanks!
I designed a custom ESP32-S3 PCB and I connected it with micro-usb and my computer does not recognize the board at all. I am reading the serial output using a secondary dev board as a USB-to-UART bridge, with TX/RX crossed and a shared common ground. I confirmed with a multimeter that all the power works, based off this serial output, is it expected that my board is not being recognized and is it a power issue?
Hi everyone, I designed this custom ESP32-S3 sensor system with an IMU and temperature sensor. The issue is the ESP32-S3 is not being detected by my computer.
These are the things I've tried:
-With a multimeter, I confirmed EN, 3V3, and GPIO0 get 3.3V.
-The pushbuttons pull GPIO0 and 3V3 to 0
-Continuity beeps on the D- and D+ pins from the connector to GPIO 19 and GPIO 20 respectively
-No shorts on the connector
-The microusb cable I'm using works as it detects my other ESP32 dev kit I bought
If anyone could review my schematic or needs more information please let me know, as well as other things I could do. The PCB I ordered was from JLCPCB.
Thanks!
