The BOLT microcontroller board utilizes the Microchip 18F2550 with built in USB capabilities. Utilizing a 2k ‘boot loader’ this leaves a great deal of flash RAM for C programming using MPLAB and the C18 compiler. The BOLT board comes in two versions. LITE which has the 18F2550, 8 LEDs for PORTB, four switches and a […]
Introducing the BOLT PIC18F2550 Microcontroller Board using pic microcontoller Read More »
The good and high precision capacitor meter (Capacimeter) inductor meter (inductimeter) auto range lc meter for pic 16f84 or pic 16f628 and display lcd by phill rice Construction of an apparel that allows measure inductors (Inductimeter) and capacitors (Capacimeter), knower like LC meter, using PIC (16f84 or 16f628) and display marries in LCD. Translated of
lc meter capacimeter inductimeter circuit pic 16f84 auto range lcmeter Read More »
I had a few multicolor LEDs laying around and wanted to whip up a color-blending nightlight. I built 2 devices, each in its own 20 pin DIP socket without soldering. A 3-pin header is included so I can reprogram the light on-the-fly if desired. On my first build, I used wire-wrap. The next one used
Picaxe Blending Nightlight using pic12f683 Read More »
The 230 V, 50 Hz is step downed using voltage transformer and current transformer is used to extract the waveforms of current. The output of the voltage transformer is proportional to the voltage across the load and output of current transformer is proportional to the currentG‚throughG‚the load. These waveforms are fed to Voltage Comparators const
automatic power factor controller using microcontroller Read More »
[Kay Choe] can’t play the piano. Rather, he couldn’t, until he converted his keyboard to include LED-guided instruction. [Kay] is a microbial engineering graduate student, and the last thing a grad student can afford is private music lessons. With $70 in components and a cell phone, however, he may have found a temporary alternative. The
LED-Guided Piano Instruction using pic microcontoller Read More »
This is Ver2.0 of a finished project. I usually do projects about the same way every time. Product definition (10 min), Code outline (10 min), Schematic generation, Build prototype, Write code all at one sitting (This one took about 6 hours), Take a copy of the above file, and delete all but a small section.
PIC16C63 Midi controlled Light dimmer Read More »
desktop-sized can cooler From the “Something that Should be Made Department” comes this drink cooler. Ever since seeing peltier devices for sale I have wanted to put one to a cool use, and this is it. 🙂 The heart of the device is of course the peltier module. photo is from ebay auction for my
Peltier-Powered Drink Cooler! Read More »
Summary. A design for a simple microwattmeter. Input range -75 dBm to + 5 dBm. Frequency range 2 to 50 MHz. Level resolution is 0.1 dBm, frequency resolution is 10 kHz. Log-output about 0.5 – 3.5 Volt. Output for external counter. The meter uses a AD606 as log-converter, a MAX186 as ADC, a PIC16C84 as
A simple 50 MHz diy microwattmeter using PIC16C84 Read More »
In February of 2007 I spent a little while prototyping a board that turns any bicycle wheel into a moving display billboard using a single string of LEDs. The idea was to do something that would be very visible, turn itself on and off automatically, have enough processing power to dynamically generate bike computer style
Bicycle Persistence of Vision Light Display — February 2007 Read More »
This is an old design. Some of the components may be difficult to buy. If you would like to build an even better and cheaper A/D converter, take a look at the new PICADC3 design. The PICADC is a simple 12-bit, 8-channel analog to digital converter (with 4 additional digital inputs), which may be connected
PICADC – a free, PIC based “intelligent” A/D converter using PIC16F84 Read More »
