Real-time-clock chip makes low-power oscillator
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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The MiniLOGGER provides 8-channel analog input(-99mV to +999mV), 1-channel pulse input, battery...
This project uses a four-point resistance measurement process also known as the Kelvin method....
Full short-circuit and overcurrent protection is given by this circuit suitable for workbench...
Amplifying and limiting of the AM carrier is accomplished by the if gain block providing 55 dB of...
This circuit uses a pair of Zener diodes to monitor battery voltage of a 12-V battery. If below...
An unconventional, scalable high efficiency 12V solar power system and battery charge controller...
This circuit allows you to set a limit on the maximum output current available from your PSU....
It is a resistance tuned oscillator covering from 35 cps (frequency unit was the cycle at this...
A cheap garland tree and fill it full of blinking LEDs. The tree shown is a cheap garland wrapped...
This PIC software combines frequency counter and frequency lock functions. By adding couple of...
I am posting here a circuit example for interfacing RF module using HT12E/D encoder decoder pair....
The LM1875 delivers 20 watts into a 4 or 8 load on ±25V supplies. Using an 8 load and ±30V...
Here`s a nice little circuit diagram for all those hardcore DIYers if you are trying to build a...
Circuit is shown. C1 is the input filter capacitor. VDz VD1 composition and primary clamp...
24dB/oc seven times Butterworth (maximally flat characteristic) constituted by the two filters,...
As shown in FIG portable hypoxia monitoring circuit. The circuit consists of the oxygen sensor...
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