I tested a simple and inexpensive serial pic programming circuit. The foundation mesh “JDM Programmer” pic of the programming circuit. RDC Programmer name resistors, diodes, capacitors, circuit test is based on the fact that I did with the PIC16F628 com cable directly from the PC using RS232 socket on the rear of the chassis I’ve…
MAX1811 USB port on to recharge the battery produced an integrated very little material circuit can be established circuit charge status LEDs can be observed also 4.1 volts, 4.2 volts elections and 100mA 500mA charging current can be selected fed lipo li-ion battery charging circuit circuit eagle crafted with PCBs and schema files available MAX1811…
ATX power supply led indicator and a simple circuit to test the output voltage of the LEDs, you know the observations made with the sprint pcb layout (.lay) located in drawing on the source site also has plenty of high-frequency transceiver circuits Simple ATX Power Supply Tester ATX Power Supply Tester Circuit schematic PCB files…
5 piece kit consisting of the first half pretty simple and inexpensive radio circuit with a stylish casing made of wood and plexiglass think should be reinforced with output amplifier fm radio circuit has two different 🙂 simple radio circuit I have heard, even from a physicist, that it is impossible to build FM crystal…
One very simple metronome circuit npn and pnp transistor and one capacitor potentiometer resistance buzzer can be connected to the audio output to speakers or headphones + 5v dc supply voltage can be Bcxxx bdxxx transistors used for the different series can I try 2s945 (npn) 2sa733 (PnP) I used 47k resistors. 16v 4.7uF capacitor…
High-power PTC thermistors PTC to test a simple practical method of this type generally used in tlevizyo and monitor control rarely fails for this reason they will not be forgotten in supply failure, keep in mind;) 220v ac supply given the PTC sturdy lamp gives light after an instant PTC heats the internal resistance increases…
19 pieces of white LEDs lamp (220v 1w) LEDs used directly without transformer 220nF 220v mains AC voltage of 400 volts (non-polar) and 4.7mf resistor capacitor 100uF 63 volt capacitor with the overthrown 1n4007 diodes are operated with the filtered and rectified by Transformerless 220V LED Lamp Schematic CAUTION 220v LED lighting has been working…
PIC16F84A microcontroller with the basic DO-RE-MI-FA pic of a simple circuit that can produce notes prepared by software RA3 assembly speaker connected to the output of 0.5W. Guide to use the PIC electronic work, I made a Doremifa organ using the 16F84A as the 2. We put out the sound of each Doremifa in SW8…
The PIC has a white arrow in the transistor and the clock is a little to the right. Pull-down resistor Tact switches are in line with the lower back. PIC fast 200ns port in the meantime and have pressed any button to check each one to switch ON, OFF is a pseudo-noise in the oscillator.…
A simple useful Power control circuit can be used for 12v lamp dimming dimmer or motor 12 volt motor speed control. In the circuit diagram, the driver appears as integrated 7555, don’t be fooled, you can use the 555 timer IC. This integrated is produced by many companies. There may be name differences. It seems…