Exploring the Transcend Wifi-SD card

It’s been my experience over many years that hardware people are responsible for rubbish software. Years upon years of shoddy hardware drivers, dreadful software bundled with cameras (Canon, Pentax I’m looking at both of you); Printers (HP, Epson), Scanners (HP – one day I might forgive you) have provided the evidence. Since leaving Microsoft I’ve spent more time working with Linux, and every so often I get ...

Read more

A Brief Introduction to MSP430 using Launchpad (MSP430G2553)

In this tutorial we will be exploring the workings of a MSP430 based microcontroller from Texas Instruments.MSP430 is developed by Texas Instruments as an extremely low power 16 bit architecture for use in low power, low cost, energy constrained embedded applicationsThe Hardware used is the MSP430 Launchpad from TI which contains a programmer/Debugger + two microcontrollers making it an ideal platform to st ...

Read more

Programmable relay switch using PIC MCU (revised version)

Programmable relays are key elements in numerous automation applications such as automatic street light control, watering and pump control, HVAC, home automation, power plants automation in industries, etc. This article describes a DIY programmable relay switch using PIC16F1847 (PIC16F628A can also be used) microcontroller. It is a revised version of my previous PIC-based relay timer project with added feat ...

Read more

Bosch Sensortec

BMX160 The BMX160 is a very small low power, low noise absolute orientation sensor designed for use in wearable devices like smart watches or augmented reality glasses. It comprises a 3-axis accelerometer, gyroscope and geomagnetic sensor in a single package. Its current consumption is typically 1580 μA, enabling always-on applications in battery driven devices. The BMX160 is available in a compact 14-pin 2 ...

Read more

4 Channel Relay Board

Quad Channel Relay Board is a simple and convenient way to interface 4 relays for switching application in your project. Features Input supply 12 VDC @ 170 mA  Output four SPDT relay  Relay specification 5 A @ 230 VAC  Trigger level 2 ~ 5 VDC  Berg pins for connecting power and trigger voltage  LED on each channel indicates relay status  Power Battery Terminal (PBT) for easy relay output and aux power conne ...

Read more

Hacking the OWON SDS7102 Scope

The specifications for the scope are rather nice: decent bandwidth and sampling rates, a large bright display, a battery option and lots of connectivity such as a USB host, USB device and Ethernet. The scope is pretty crappy in some ways though. The analog section is fairly noisy so don’t expect to see any details for signals below 1mV at X10 attenuation. The firmware is a bit buggy and some things just don ...

Read more

ESP8266 Bread Board Testing

This instructables show how to test ESP board on bread board without soldering, especially for ESP-07 and ESP-12(E) and may be ESP-03. ESP board most require 2 mm pitch connector but most bread board are 2.54 mm pitch, It need some tricks on connect between ESP board and bread board. Step 1: Preparation 2 mm pitch male pin connector with 14 or more positions, e.g. http://www.digikey.com/product-detail/en/3m ...

Read more

Dark Sensitive Switch – LED Light

Dark activated LED light is a simple project which operates a LED when the light falling on the LDR goes below a set point.  The circuit is built using LM393 comparator, LDR as light sensor, preset (potentiometer) for sensitivity adjustment, transistor to drive the LED. The project can also be considered for use in energy saving application. Features Input – 12 V @ 1A LED 12V 500mA Maximum (6W) Onboard Pres ...

Read more

Stand-Alone ModelGauge m5 Fuel Gauge with SHA-256 Authentication

The MAX1720x/MAX1721x are ultra-low power stand-alone fuel gauge ICs that implement the Maxim ModelGauge™ m5 algorithm without requiring host interaction for configuration. This feature makes the MAX1720x/MAX1721x excellent pack-side fuel gauges. The MAX17201/MAX17211 monitor a single cell pack. The MAX17205/MAX17215 monitor and balance a 2S or 3S pack or monitor a multiple-series cell pack. To prevent batt ...

Read more

Using the ChipKIT Basic I/O Shield With Analog RGB Strip LEDs

A few months ago I wrote a blog post about the chipKIT Basic I/O Shield and used Analog RBG Strips to demonstrate the the open drain FETs. This post is to give details on how to wire up the strip LEDs to the I/O Shield. You should already know how to program MPIDE before using this Instructable. Step 1: Gather Materials Gather your materials: Strip of RGB LEDs (12V) usually, you can get them fairly cheaply ...

Read more
Scroll to top