Mois : mars 2025
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Ampli HF IRF250
Read More : Ampli HF IRF250schema photo Filtre Yaesu FT757GX piloté via RP2040 ( Simul PA50 ) Filtre 160m Filtre 80m filtre 40/60m Filtre 20-30m Filtre 15-17m Filtre 10-12m
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Microcontroleur AT89S52
Read More : Microcontroleur AT89S52Programmation avec ARDUINO ISP et les commandes C:\avrdude\avrdude.exe -C c:/temp/89s52/avr8051.conf -c stk500v1 -P com9 -p 89s52 -b 19200 -U flash:w: »c:\temp\89s52\serie_ok\objects\serie_ok.hex »:a Programme Exemple : 1er – Affectation Broche P2.0 l’etat HAUT 2eme – Shift Droit ou gaucghe suivcant bouton avec gestion Interup 3eme Example port Serie(>LCD
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ADF4351 Synth 35Mhz-4.4Ghz
code : /* ————————————————————————- * * Name : ADF4351 Controled Board 35Mhz-4.4Ghz with 10Mhz OCXO Reference * Author : Stéphane HELAIEM – F4IRX * Date : july 12, 2025 * Purpose: ADF 4351 Synth * Versions: * 1.0 : ARDUINO NANO * 1.1a : Change to ESP32 C3 ( 3.3v…
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ADF4351 controlled with ESP32
ref : https://github.com/Ryushane/ADF4351-ESP32 https://github.com/dfannin/adf4351 code test : #include « ADF4351.h » #include <SPI.h> #define clock 4 #define data 6 #define LE 7 #define CE 10 ADF4351 adf4351(clock,data,LE,CE); // declares object PLL of type ADF4351 void setup() { Serial.begin(115200); adf4351.begin(); // ref =25Mhz freq :41Mhz adf4351.WriteRegister(0x00580005); // R5 adf4351.WriteRegister(0xEC81FC); // R4 adf4351.WriteRegister(0x000004B3);…
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PICO VBAND
Ref : https://github.com/f4goh/pico_vband schema Code // SPDX-License-Identifier: MIT // // VBAND CW USB dongle based on a Pi Pico. // Also supports other key outputs for Vail and morsecode.me etc. // // Inspired from similar projects at: // https://github.com/sipsmi/vband_dongle/tree/main // https://github.com/mgiugliano/MorsePaddle2USB // https://github.com/nealey/vail-adapter // // There is also a PiPico circuit python implementation shown on…