Arduino multi-mode lamp with soft touch switch

Posted on Feb 7, 2014

In this Arduino-based project, we will build a lamp with multiple light displays: color sequencer, dimming light, color chaser, firelight all selected by a touch bar on the circuit board. We will be going the minimalist way for this project, filling the board with just a microchip, the LEDs, a handful of resistors and some capacitors, all for

Arduino multi-mode lamp with soft touch switch
Click here to download the full size of the above Circuit.

under $10, along with the necessary connecting hardware. The circuit will be using 3 RGB LEDs. These arecommon-anodePiranha type available here and contains three LEDs within its body. Each color will need a single dropping resistor (220-ohm for green and blue and 330-ohm for Red). We can also add a small LED with a 1k-ohm as an indicator. The IC we are using is an ATMega-328 microchip, available for about $5 here You will also need a 16Mhzresonatorfor about 35c, also available at the same site. The development and testing of the software is done using the Arduino system, so a suitable host` is necessary. I`ve used an Arduino Nano`, a Boarduino and a RBBB board and they all work fine. It is averygood idea to put the microchip in a socket. Here, I`ve used 2 x 16-pin sockets end-to-end, because that is what I have available The ATMel chip only has 28-pins so we`ll have a few empty sockets on the end. After I`ve done the preliminary wiring, the circuit (and programming) is tested through jumpers connected to the host`, an RBBB (Really Bare Bones Board), also from Modern Devices. This lets me make sure the wiring is correct before we commit the Microchip. A major effort-saver is the use of Teflon wire, which does not melt even when routed close to soldered parts. Teflon wire is also available silver-plated which allows me to use thinner wires (#28) and still handle the current. These wires can be found here on eBay. The wiring...

Leave Comment

characters left:

New Circuits



Popular Circuits

12VDC Fluorescent Lamp Driver
555 LED flasher
Null detector
High Voltage Pulse Generator Electronic Circuit
Metal Detector Circuit Schematic using Beat Frequency Oscillator (BFO)
lm3914 in dot mode
Motorcycle Alarm PCB
Audio Oscillators
Home Electrical Wiring
LCC configuration for Tesla Coil impedance circuit
H-bridge of 40N60 mini-brick IGBTs
Differential amplifier circuit