Electronics – Page 16 – Kerry D. Wong

MCP2210 Library — SPI Example Using MCP23S08

I made a few minor tweaks to the open source MCP2210 library during the past few days, and had also […]

Over the past couple of weeks, I had been busy playing with Microchip‘s MCP2210 USB to SPI converter. I was […]

A few of weeks ago, I wrote about a couple of cheap webcams I bought from Amazon. Since the focal […]

For a lot of electronics enthusiasts and DIYers, hand-soldering SMT components can be a great challenge. And given the trend […]

In this post I will show you a simple Zenner diode tester circuit, when coupled with a PWM generator it […]

I got a used 250VA power transformer that was removed from equipment a couple of weeks ago. The transformer has […]

This topic is nothing new and there are already quite a few good articles on the web on this. But […]

Last week, I received two of the demo boards from Renesas. One is a YRPBRL78G13 and the other is a […]

I have built quite a few (1,2,3) temperature measurement circuits in the past, but none of those has remote sensing […]

I received my STM32F4-Discovery evaluation board last week. So I setup the required development environments and did a quick test.

Last time I showed a simple circuit that can be used to measure unknown thermistor parameters. The circuit is basically […]

Over the years, I have gathered quite a few NTC and PTC thermistors. But most of them are unmarked so […]

Typically a synchronous camera flash (e.g. slave flash) is triggered via an SCR. In this blog post, I will show […]

Many of the modern chips such as MEMS accelerometers and gyroscopes only come in surface mount versions and many of […]

The drive circuits for Unipolar stepper motors are usually very simple. In its simplest form, a transistor or MOSFET is […]