This is just another weekend project. I need a temperature and humidity monitor, instead of buying one from Ikea, I decided to make one with a Sensirion SHT40 sensor and a ATtiny824 MCU.
Continue reading "Build a SHT40-based temperature and humidity monitor"
A while back when browsing Aliexpress, I saw this 4-digit segment LCD glass that selling for slightly more than USD1.00, so I bought it out of curiosity and this article describes on how to drive the LCD glass with GPIO, no dedicated LCD controller used.
Continue reading "How to drive a segment LCD glass with GPIO"
For many makers, a project idea sometime may take a very long time to materialised. This project for creating a STM32G070-based PalpTop handheld took me almost a year, starting from the initial idea, to making the final PCB, and still not 100% completed yet. Continue reading "Build a PalmTop handheld with STM32G070"
On previous article, I wrote an Arduino sketch for interfacing LCD 5110 display module with Arduino, it is not an Arduino library that can be distributed and share with others yet. In this article, I will explain how to create an Arduino library in 6 easy steps. Continue reading "How to create Arduino Library from Arduino Sketch"
In this article, I will briefly explain on how to create a Python class library to interface with LCD 5110 display module and shares the common APIs with the Arduino LCD5110 library that I previously created. Continue reading "How to use LCD 5110 (PCD 8544) with Raspberry Pi"
LCD 5110 (a.k.a. Nokia 5110 or PCD8544) display is a commonly available LCD module with SPI interface, by writing our own LCD driver based on its data sheet, we could learn a lot about how the LCD module works and how to write SPI program and save a lot of SRAM memory. Continue reading "How to use LCD 5110 (PCD 8544) with Arduino"