I had a classic Ikea clock that damaged by the leaking battery, during the new year cleaning, my family decided to through it away, I took it back from trash bin and thinking of a weekend tinkering project to turn it into a digital clock. Continue reading "ESP8266 NTP clock with NTP update and Charlieplexing"
I have been using STM32CubeIDE for my STM32 development for past a couple of years, and there are things that I like about the IDE but there are also things that I don't like about it. In this blog I'd like to discuss how I setup the IDE to overcome some of the things that I don't like about the IDE. Continue reading "A better way to setup STM32CubeIDE"
This article talks about how I hack a UYue 946 preheater and convert it into a solder reflow hot-plate. Continue reading "Converting UYue Preheater into a Solder Reflow Hot-plate"
Recently I came across a piece of code which is nearly 50 lines long, plus several global variables, a state machine, all it does is to debounce two buttons. Button debounce does not to be this complicate, in this article I will show you probably the simplest button debounce solution. Continue reading "The simplest button debounce solution"
Recently I got two STM32 LoRa Discovery boards(B-L072Z-LRWAN1) for my LoRa project, and I need to install STM32CubeIDE and an STM32 Expansion Package i-cube-lrwan in order to use the board. It took me a while to figure out everything and I thought it would be good to share how I set everything up. Continue reading "How to Install STM32CubeIDE on Mac and STM32 LoRa Discovery Kit"
Recently a reader of my blog asking on how to setup WordPress mail. It turns out it take a just a few simple steps to make the WordPress SMTP email works without a plugin. Continue reading "Simple steps to setup WordPress SMTP email without a plugin"
Continue from previous article where I examines the RAK7243 Lora gateway, in this article I take a look at RAK5205. I like the RAK7243 but couldn't say the same for RAK5205 for several reasons... Continue reading "Lora – Part 2: RAK5205 LPWAN Tracker Board"
A week ago, I got a chance to borrow a RAKWireless' RAK7243C LPWAN Developer Gateway and a few RAK5205 WisTrio modules for a test, and this is my first impression of the products with my understanding on how it works. Continue reading "Lora – Part 1: RAK7243C Lora Gateway"
ATtiny3217 is a modern AVR microcontroller chip from Microchip that could potentially replace ATmega328p that is widely used in official Arduino boards, and here is how I build an Arduino compatible development board based on ATtiny3217. Continue reading "Arduino-Compatible Development Board with ATtiny3217"
This is the second part of the two-parts review on Seeed Studio's ph and EC Sensor Kits. In this part, I will take a closer look at EC Sensor Kit and how to measure EC with an Arduino. Continue reading "A review on Seeed Studio pH and EC Sensor Kits – Part 2"