Disclaimer: Use the information provided here at your own risk. I do not take any responsibility for any resulting damage. DO NOT USE THE MALE AND FEMALE SCART OUTPUTS AT THE SAME TIME.

This is an alternative implementation of my previous adapter based in the cheap PIC16F18313 . It has the following pros:

  • It automatically detects the polarity of the input VGA sync signals and configures the configurable logic cells (CLC) of the PIC dynamically to generate the SCART composite sync signal correctly.
  • If the frequency of the VGA horizontal sync signal is wrong or if the VGA vertical sync signal does not change then the PIC disables the SCART composite sync signal, the SCART RGB selection signal and the SCART status signal.
  • Most VGA devices can provide enough power to the PIC so no external power source is required.
  • No external power source nor DC-DC converter is required to generate the 12V of the SCART status signal. It can be generated by the PIC itself as noted by Visenri.
  • Selectable ratio selection.
  • Include LEDs  to test the power and input sync signals.
  • Selectable power source.
  • Require many little components, and they are easy to solder.
  • Selectable output gender [joke here].
  • Jack audio input

Bill of materials

componentnumber of units
model I used
were did I bought it
horizontal male SCART connector (optional)

vertical female SCART connector

female DE-15 connector

female mini-USB connector1https://www.aliexpress.com/item/32700147842.html?spm=a2g0s.9042311.0.0.135263c07T7FSvKoson Electronics
3.5 mm stereo male jack to 3.5 mm stereo male jack cable1

3.5 mm stereo jack socket
microcontroller1PIC16F18313-I/PRS Components
capacitor C1
1https://es.rs-online.com/web/p/mlccs-condensadores-ceramicos-multicapa/5373369/RS Components
capacitors C2,C3,C4,C5
4https://es.rs-online.com/web/p/mlccs-condensadores-ceramicos-multicapa/5381310RS Components
Zener diodes DZ1,DZ2
RS Components
Schottky diodes DS1,DS2,DS33https://es.rs-online.com/web/p/diodos-schottky-y-rectificadores/6527321/RS Components
red LED1https://es.rs-online.com/web/p/leds/1278400RS Components
green LED
1https://es.rs-online.com/web/p/leds/2471375/RS Components
resistor 1KΩ R1

resistors 220Ω R2,R3,R43

resistor 150Ω R51

resistors 680Ω R6,R72

printed circuit board1
3D printer filament


The compiled firmware can be downloaded here. The C source code can be downloaded here.


If you are going to include male and female SCART connectors, download de STL files to print the housing here. If you are only going to include the female SCART use these instead.

You can also use this file to print a cover for the male SCART connector using flexible filament.