I am going outside the town for a week or so and during that period I wanted to install a surveillance system build with ES32-CAM , PIR sensor and maybe SD-Card to save the picture or video. I build simple video streaming system with ESP32-CAM which steams video on url in real time. …
I am going outside the town for a week or so and during that period I wanted to install a surveillance system build with ES32-CAM , PIR sensor and maybe SD-Card to save the picture or video. I build simple video streaming system with ESP32-CAM …
I have written extensive notes on the theoretical aspects of power supplies, voltage regulators, current sources, and inverter designs using Arduino and 555 timers, as these circuits are fundamental to electronics. Recently, I shifted my focus …
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 have few various ubiquiti antenna and radio but some are got malfunctioning now like the Lite AP 120(LBE-5AC-120) degree sectored antenna. I have three of them and only one is working. I want to check whether I can repair these antenna, how…
Here I wanted to note down solution to blinking of Ubiquiti Power Adaptor Led. This problem can be observed after the ethernet cable is inserted to the some of Ubiquiti antenna radio equipments such as the Ubiquiti Power Beam 5AC. tried a 48V on my …
I have a car inverter 1000W 12VDC to 230VAC, I wonder whether if I use a 9Ah 12V battery of Apache bike? Because I needed battery to power up a diy UPS from inverter that I wanted to build for my wireless ISP network. Here is the answer No, it’s n…
I am trying to make a UPS(Uninterruptible Power Supply) with Arduino to power few WISP network equipment, one router, one switch, wifi router and two ubiquity antenna. For this the parts I need are Arduino which will used to detect ac main voltage u…
Two weeks ago, I shared a post about repairing soldering iron at home. Initially, I attempted to fix it by unwinding and rewinding the heating coil myself. However, I suspect the rewinding wasn’t done correctly, as the repair didn’t work. Eventual…
