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ESP32 H.A.N.D. Project

When the ESP8266, the predecessor to the ESP32, came out, I was hoping for a chip with lots of I/Os but more importantly something that has both WiFi and Bluetooth built into the chip.

It happened — Espressif launched the ESP32 chip and this got me very excited. At last, a small, versatile and powerful chip that supports a lot of the, in my opinion, needed features and functions that makes a great chip for both electronic hobbyists and commercial applications.

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Unpacking my Keweisi KWS-V20 USB Tester

I’ve started to taking out from storage some of my electronic related tools to start on some personal projects. Lately, I’ve had the need to measure voltages and currents on USB devices and it’s a pain to setup circuits just to test them.

After, searching the Internet to find a solution, I’ve found out about this small USB tester that allows easy measurement of a USB device’s voltage and current. It also has other features that allows a user to measure other parameters like milli-ampere-hours and the elapse time. This became very useful, for instance, in cases where I want to find out the charging capacities of lithium batteries.

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