I also understand that I can use 0 ohm resistors to connect the SDA and SCL pins of the SSD1306 module to the corresponding ESP32 pins if I later need 3.3K resistors. Just to be clear, what you need is two pullup resistors, one between SDA and 3.3V and the other between SCL and 3.3V. I think what y...

Is it good practice to separate the charging circuit (TP4056, DW01A, FS8205, and related components) into a separate PCB? My plan is to connect this secondary PCB to the main PCB via two wires, similar to how a battery would be connected. This would help me to take advantage of all the space on the...

Suggest you use https://docs.espressif.com/projects/esp-hardware-design-guidelines/en/latest/esp32/ as a reference. A few things I spotted: - The antenna had no keepout zone and is in the middle of the PCB. This will majorly impair WiFi reception. - You need pullups on your I2C buses. - It's bad pr...

Hi everyone, I’ve been working on designing a PCB for a project using the ESP32-WROOM-32D as my first attempt at PCB design. I’m looking for feedback, suggestions/evaluations on my design before I proceed with ordering the PCB. I’ve attached three photos of the design for review. Due to site restric...