Acid rain monitor
Posted on Dec 29, 2012
New Circuits
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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 is a 0 - 6 MHz DDS VFO controlled by a PIC16F84 (or `C84). The VFO is separated into two...
These metal detector circuit diagram is based on the TDA0161 monolithic integrated circuit ,...
Intermittent failures in electronic systems are some of most difficult to diagnose. This device...
The circuit requires only one dual-ganged potentiometer to tune over a wide range; if necessary...
This circuit is a bidirectional amplifier that can amplify both signals of a duplex telephone...
This is the DOD Overdrive 250 preamp circuit diagram. The DOD Overdrive 250 is Yet Another 741...
I2C is pronounced "I squared C" and stands for Inter-Integrated Circuit. This protocol was...
Car Inverter (Power Converter, Power Inverter) is a way to convert the DC DC12V and AC220V AC...
This is one of the simplest stereo balance indicator circuit that you can have. The circuit will...
Just ran a +12V switched wire back to the camera wiring and connected it to the same place that...
Switched mode power supply units (SMPSUs) are popular but difficult to build oneself as well...
Communication with the MCP3028 ADC chip is done using a simple serial interface compatible with...
The Demodulating Receiver (A3017) contains a 902 ’930 MHz 30-dB amplifier, a downshifer, a 60-dB...
For all of the following tests, we used a high quality signal generator from BlackStar. The...
A circuit to extract and measure the modulated carrier of an Infra Red remote control. Note that...
The new TPS2359 hot-plug controller integrates all of the power management functions for two...
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