Poor Mans DDS Board
Posted on Feb 6, 2014
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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This article describes a 2-Digit Counter using a Microchip PIC12F629. It shows what can be done...
The circuit provides a simple and cost-effective solution to matching resistors and capacitors....
The HI-506 multiplexer is used as an analog input selector, controlled by a binary counter to...
This unit uses a Nicad battery to provide power to an emergency lighting setup. When power...
The CD4001 quad 2-input NOR gate is a very versatile IC that can be used in an almost infinite...
This circuit turns-off an amplifier or any other device when a low level audio signal fed to its...
The circuit is basically a radio frequency (RF) oscillator that operates around 100 MHz. Audio...
The circuit depicted here forms one half of a device that will prove extremely handy when tracing...
A preferred STK4040xl Fi amplifier circuit that has good pull electrical parameters: in sv, RL Uc...
4000 Series 4011B is (NAND gate) by the 4AI NAND gate circuit group to form two loops unstable...
As shown by simple smart temperature sensors based on I2C bus interface configured as shown...
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