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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Electronic Projects

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  1. Electronic Projects 87
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Top resources

Most resources

  1. hesam_m
    59

    hesam_m

  2. crutschow
    33

    crutschow

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    7

    danadak

  4. languer
    4

    languer

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View all featured resources
Resource icon hesam_m
Easy to build digital coil-less (100KHz step size) FM transmitter
Easy to build digital coil-less (100KHz step size) FM transmitter
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
3-2 Taillight Converter Combines Brake-Signal and Turn-Signal Into One Lamp
Circuit combines the brake-signal and turn-signal into one lamp with no added power connection
0.00 star(s) 0 ratings
Updated
Resource icon hesam_m
How to make a variable step-down DC to DC converter using TPS54331
switching dc to dc converter
5.00 star(s) 1 ratings
Updated
Resource icon crutschow
Radio Push-Button Micropower Circuit Using CD4011 NAND Gate
Radio push-button function is provided by a simple circuit using a CD4011 in a latch configuration
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Accurate, Adjustable SCR Crowbar Circuit For Overvoltage Protection Using TL431 Reference
TL431 provides accurate, adjustable voltage crowbar function for circuit overvoltage protection
5.00 star(s) 3 ratings
Updated
Resource icon crutschow
Low Voltage, Low Power LED Constant-Current Driver Operates to Within 200mV of the LED voltage.
LV, LP, CC driver allows two alkaline or NiMH cells to steadily power a Red LED until discharged.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
NiZn Battery Charger With Auto Cutoff Using LM317
Charger performs recommended charging function for rechargeable NiZn batteries
5.00 star(s) 3 ratings
Updated
Resource icon crutschow
Simple, Multiple Sensor Intrusion Alarm With Arm and Entry Delays
Low parts-count circuit monitors multiple alarm switches, includes arm and entry delays
5.00 star(s) 1 ratings
Updated
Resource icon crutschow
LM317 12V Lead-Acid Battery Charger With 3-Step Auto CC/CV and Trickle-Charge
Lead-acid battery charger using LM317 provides auto CC charge, CV top-off, and final trickle-charge
5.00 star(s) 2 ratings
Updated
Resource icon languer
Expanding on Simple Weight Scale
Weight Scale using SFE's OpenScale platform
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Simple Push-Button Power On/Off Circuit With Delay
PB latch circuit provides on/off delay function to prevent accidental power switching
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
PWM Input Constant-Current Circuit With 3-Pole Active Filter
Circuit combines PWM controlled constant-current source with 3rd-order filter using one opamp
0.00 star(s) 0 ratings
Updated
Resource icon languer
Building a Simple Weight Scale 2018-08-12
Weight Scale built using SFE's OpenScale platform
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Low Power PWM Stepper Motor Driver 2018-08-05
Stepper motor driver applies full voltage for fast stepping, then PWM for low power hold
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Electronic Power Rheostat 2018-07-23
Circuit generates an equivalent high power resistance that can be adjusted with a potentiometer.
4.00 star(s) 1 ratings
Updated
Resource icon crutschow
Radio Push-Button Micropower Circuit Using CD4049 Inverter 2018-07-18
A simple circuit using the common CD4049 to generate the Radio PB Function
0.00 star(s) 0 ratings
Updated
Resource icon unclejed613
output impedance experiments 2018-07-10
Damping factor, and how an amplifier controls voice coil motion.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Notch Filter Allows Single Pot Adjustment of Notch Frequency With Little Change In Its High Q Value 2018-06-01
Notch filter Q is largely independent of component tolerances and notch frequency adjustment.
0.00 star(s) 0 ratings
Updated
Resource icon crutschow
Battery - Accurate, Low-Voltage Cutoff To Prevent Complete Battery Discharge 2018-05-29
Circuit disconnects battery from operating accessories at a specific voltage to avoid dead battery.
5.00 star(s) 1 ratings
Updated
Resource icon languer
Low Cost Alternative USB-to-GPIB Controller 2018-05-12
USB-to-GPIB Controller
0.00 star(s) 0 ratings
Updated

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