After many months since I first worked with ESP-CAM module, I tried to upload a code into it. But I got errors. I checked and remembered that I encountered such problem back then which I wrote about in my note Troubleshooting Uploading Problem with …
In earlier note on How to Check Electronic Components on a PCB Using a Multimeter , I only briefly outlined about how to test MOSFETs on PCB board. I should have mentioned where to connect or touch the MOSFET pins with the COM and LIVE probe of the …
I need to do more electronics circuit repairs and not just theory so I have been trying to repair faulty electronics that I need to repair. My ubiquiti Lite AP 5AC 120 or LBE-5AC-120 radio is malfunctioning and I have been trying to repair it. I wro…
I learned something new which is how to check whether an IC found on PCB of mobile phones, laptop, power supply is damaged or not. There are two ways, the first is by touching and inspecting for any heatup and burnout of the IC. This might not alwa…
I was working on trying out how to save .bin file in external EEPROM with Arduino Nano described in my post how to write a bin file to the EEPROM using Arduino? . When I compiled I forgot that I had to use SD library and I got compiling error as fol…
Here, I can describe how to set up load balancing across two ISP WAN connections using Mangle on your MikroTik CCR2004-16G-2S+ router via WinBox . Below is a step-by-step guide for setting this up. Goal: We will load balance outgoing traffic ac…
While working with microcontroller boards like ESP32-CAM, Arduino Nano or ESP8266 NodeMCU, and other ESP32 boards I came across several problems while uploading the program code. These devices are either connected through USB(using USB To RS232/ TT…
