Category Archive: Electronics Projects

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Remote Controlled Security System with PIC16F628 PIC16F88

| 2008/09/02

Ideal for keyless entry for doors in the car, home and industry, this Keyless Entry System includes a rolling code to provide high security. It also has two door knock outputs, an alarm system, and a provision for using 16 separate key fob transmitters with the same receiver. Many different electronic systems have been developed…

45-Seconds Voice Recording Circuit with HK828

| 2008/09/02

Voice Recording Circuit HK828 and LM358 based on the supply voltage 9-14 volt DC Microphone with 45 seconds voice recording can be done recording the sound level rises to the outlet to an amplifier can connect a record eight separate section hiding the corresponding button with the records can be accessed Voice Recording Circuit Single-chip,…

Hand Drill Battery Charge Controller with PIC16F88 Microcontroller

| 2008/09/02

It has many features such as charging screwdrivers, which are frequently used in technical services, programming a charging circuit designed for drills, and temperature control with LED indicator. Micro Controller PIC16F88 used in charge control circuit Charge Controller for Cordless Tools Protect your device and extend the life of your power tool’s rechargeable batteries. Charge…

PIC16F88 230V Fan Controller Timer Circuit

| 2008/09/02

Timing circuit is operating with high voltage Be careful. The supply of the control circuit is taken from the mains without isolation. Be careful when testing while making connections Microcontroller PIC16F88 Triac used for high voltage control BTA08-600TW Unfortunately, there is no source asm code, only hex code, at least for those who will design…

MQ-7 Carbon Monoxide Alarm Circuit PIC16F88

| 2008/09/02

Carbon monoxide alarm circuit, which detects using the MQ-7-CO Sensor, operates on the PIC16F88 Microcontroller, the operating voltage is 12v dc, it detects carbon monoxide and pulls the 12v relay in the circuit according to the level, whatever is connected to the relay (siren, lamp, etc.) is working. Carbon Monoxide Alert Carbon monoxide is an…

PIC16F628 Microcontroller Heart Beat Control Circuit

| 2008/09/02

As far as I understand, the circuit is designed to be used in first aid training, it may be used for control in heart massage with a model in electronic heart trainings. It is a different circuit, especially if we consider that there is not much circuit source in medical electronics, it is useful to…

Electronic Muscle Stimulation Circuit Switching IR2155 MC34063

| 2008/09/01

Electronic muscle training, muscle stimulation devices were once very popular, the biggest reason is the affordable price I shared a different muscle stimulation circuit made with pic 16f84 before, this circuit is the same as logic, there are more or less differences control integrated circuits mc34063 and ir2155 electronic muscle training circuit diagram , pcb,…

TL074 Bass Extender Circuit

| 2008/09/01

Bass Extender – Circuit consists of an opamp (TL074) and a few passive elements (resistor capacitor) supply voltage is 12..20 volts DC.. It is used to amplify bass sounds. The pcb drawing is very elegant, and the capacitors specified as NP in the low-cost bass booster circuit are electrolytic. type but will be non-polar RS…

AT90S2313 Computer Supported PID Temperature Controller

| 2008/09/01

PID Temperature Controller Max232 PC via RS232 serial port connection can be made According to information I found PID Temperature Controller is accurate temperature control system i AT90S2313 control system with high mains voltage MOC3061 Opto-isolated TRIAC BTA10-600B used for AC Control PID Temperature Controller What’s a PID controller? PID stands for “proportional integral differential”…

LM317T Adjustable Regulated Power Supply

| 2008/09/01

The circuit has 1 ampere power adjustable between 1.3…22 volts, normally lm317t 1.2..32 volt adjustable can be used for some reason. If r2 is canceled and 5k is used instead of 2k trimpot, a simple 32 volt adjustable power supply circuit can be used to operate low current circuits. Do not use without a cooler.…