What’s with mint boxes and electronics? Beats me, but they are somehow made for each other. I had built ladyada’s USBtinyISP v1.0 circuit on a breadboard which I used every other day. It worked sporadically(and never at hour of need), used up half of my breadboard and looked ugly. So I decided to try my hand […]
Tic-Tac USBtinyISP Programmer Read More »
Cap’n ArrDrownHo! is the lovechild of Ardweeny and Boarduino and he’s here to commandeer your AVR ships. ArrDrownHo! inherits pros of both and cons of neither. Pick up an AVR chip and start prototyping instantly on a breadboard! Want to replace that costly Arduino in your project with a cheap AVR, but don’t know how? Use
ArrDrownHo! – Easily convert AVR to Arduino Read More »
If you like this instructable, please vote for it! For my off-grid Ham Radio and Solar projects, I needed a way to measure volts, amps, watts, amp hours and watt hours. There’s a couple of commercial products that can do this, but not with the flexibility I wanted. I designed a Arduino micro-controller based solution
DIY Amp Hour Meter – Arduino Read More »
As usual, I’ve been all sorts of busy, with little time to blog about it. I did recently score a cache of small, nay, tiny AVR chips recently, and my wife had an interest in making something with them (maybe I can get her to guest-blog about it). Anyways, I was at a local hacker
Little Wire AVR-ISP Read More »
Just from pure passion to see how low-end PIC exercises AVR, I made this programmer. Basically it is STK500 port on PIC16F1825. I took this http://www.tuxgraphics.org/electronics/ … 5101.shtml one, did some clean-up, wrote new hardware layer for PIC16 and voila – new programmer is born. It was done in one evening and night, ready to
AVR programmer on PIC Read More »
I always like a challenge, so when I saw [simpleavr]s vusbtiny programmer, I started to wonder how small I could make an AVR programmer. All in all I’m pretty pleased with the result. The schematic is almost the same as the original one. I only added a LED an resistor to indicate a proper power
Minimalist AVR programmer Read More »
Here is my Chronos watch controlled rover. The rover has a CC1110 minikit that receives SimpliciTI messages from the watch and sends this to an Arduino (AVR) over serial. The Arduino controls the motors and the servo controlling the robot arm. I have called this thing a robot, which is not strictly correct, as a
Watch controlled robot using AVR microcontroller Read More »
Frequency meter with some of quite good performance, capable of measuring frequencies from 1Hz to 10MHz (9,999,999 Hz) with a resolution of 1 Hz over the entire range. Ideal for function generators or as a standalone meter. It is cheap and easy to make, with parts that can be bought anywhere, and with a small
AVR frequency meter from 1Hz to 10MHz Read More »
This is as simple routine how to read 4×4 keypad keys using AVR-GCC language. The keypad is connected to AVR microcontroller 8 bit port. In this example it is B port. You can change ports depending on your needs – this is only an example ant it is not the only way to this. Howt
4×4 keypad example using AVR-GCC C language Read More »
Concept of Touch LCD LC7981 using ATMega An on/off controller is the simplest form of a temperature control device. The output from the device is either on or off, with no middle state. An on-off controller will switch the output only when the temperature crosses the set-point. For heating control, the output is on when the
On/Off Controller – Interfacing Touch LCD LC7981 using ATMega Microcontroller Read More »
