Friends at Cytron Technologies are going to launch an Arduino compatible Maker UNO board at KickStarter. They send me an early production board for review. So here are my two cents worth. (This is NOT a paid review) This article from Wikipedia gives us a very comprehensive list of Arduino UNO compatible boards from "known" … Continue reading Arduino Redesigned – Maker UNO Review
Recently there are some discussion regarding whether ESP8266 I/Os are 5V tolerant. The most active one being the article on Hackaday. The same article was shared on ESP8266 Facebook group and Espressif CEO Mr Teo Swee Ann commented that "i can reply officially here: it is 5V tolerant at the IO. while the supply voltage … Continue reading Is ESP8266 I/O really 5V tolerant?
Mobile charger has become one of the most popular accessories/consumables for smart-phone (thanks to Apple's non-removable battery design). Being a heavy mobile internet user, I have accumulated several mobile chargers, ranging from top-of-the-line Energizer "Energi To Go"series, to homebrew single 18650 lithium battery adaptor. All of them have proved to charge mobile phone well. But are … Continue reading Mobile charger mini review