Рации на Ардуино! 1.3 км! SA818 400-480 МГц. JLCPCB.COM

$2 for 5pcs 1-4 layer PCBs ;PCBA from $0 : https://jlcpcb.com/DYE Hello everyone! Today we will make a walkie-talkie based on the SA818 UHF radio module with a supported frequency of 400-480 MHz. And the service JLCPCB.COM will help us with this. The declared range is up to 5 km in open space, but I got a maximum of 1.3 km. Project files: https://drive.google.com/file/d/1vLRA... Link to the project in EASYEDA.COM: https://easyeda.com/igor.silenock/rda... MiniCore core: https://github.com/MCUdude/MiniCore Previous video about walkie-talkies:    • Мощные рации своими руками! UHF SA818 400-...   You can see how to create and order printed circuit boards here:    • JLCPCB: Заказываем печатные платы 10 шт. 1...   _________________________________________________________ My Telegramm: https://t.me/HomeMadeChannel For cooperation, write to: [email protected] _________________________________________________________ Component references: 1) Radio modules SA818: http://ali.pub/5bt44i 2) Baofeng Antenna: http://alli.pub/63h8i5 3) SMA antenna connector: http://alli.pub/63h8ij 4) SMD resistor kit: http://ali.pub/4wxnrf 5) A set of SMD capacitors: http://ali.pub/4zou3o 6) Tantalum Capacitors: http://ali.pub/4wxo2p 7) A set of SMD inductors: http://ali.pub/5bt496 8) SMT buttons (12X12X8 SMT): http://ali.pub/5bt4qh 9) Corner call button (8H): http://ali.pub/5bt4vc 10) SMD buttons: http://ali.pub/4zoua3 11) Two-color OLED display: http://ali.pub/5bt53p 12) Atmega328P microcontroller: http://ali.pub/5bt55u 13) Variable resistor with switch (B5K + 5 Pins): http://ali.pub/5bt5ap 14) Aluminum handle: http://ali.pub/5bt5n5 15) Audio amplifier HXJ8002: http://ali.pub/5bt6ek 16) Microphone: http://ali.pub/5bt6nw 17) Quality microphone: http://ali.pub/5bt6rl 18) Transistor MMBT2222A: http://ali.pub/5bt732 19) Speakers 8 Ohm 0.5 W: http://ali.pub/5bt7g3 20) Reference voltage TL431: http://ali.pub/5bt7j7 21) Charger TP4056: http://ali.pub/5bt7p1 The most convenient cashback: LetyShops: https://goo.gl/Ev5XgI The most profitable cashback: Ecomerce: https://goo.gl/3dDc2w _________________________________________________________ 0:00 Topic of this video! 0:26 Device Diagram 1:35 Our sponsor JLCPCB.COM 2:04 PCBs and Assembly 2:56 Firmware and project changes 4:37 Field test for communication range 4:55 160 meters 5:15 600 meters 5:56 1 kilohmmeter 6:50 1.6 kilohm 7:08 1.3 kilohm 8:00 Conclusions 8:33 Bye everyone! _________________________________________________________ Hello! My name is Igor. I am interested in programming and developing various devices. It’s always interesting for me to create something new, unusual. This vet is breathtaking when a lifeless piece of iron suddenly begins to move, ride, fly, and perform all the actions that you invest in them. Feel like a creator of something very unusual! I am fond of programming Arduino, STM32, ESP8266 and ESP32. On this channel you will find simple and interesting things, and most importantly: you can repeat all this, and even do even better! #Walkietalkie #SA818 #UHF #Arduino