$2 for 5pcs 1-4 layer PCBs ;PCBA from $0 : 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: drive.google.com/file/d/1vLRA...
Link to the project in EASYEDA.COM: easyeda.com/igor.silenock/rda...
MiniCore core: github.com/MCUdude/MiniCore
Previous video about walkie-talkies: • Мощные рации своими ру...
You can see how to create and order printed circuit boards here: • JLCPCB: Заказываем печ...
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My Telegramm: t.me/HomeMadeChannel
For cooperation, write to: h.made.chanel@gmail.com
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Component references:
1) Radio modules SA818: ali.pub/5bt44i
2) Baofeng Antenna: alli.pub/63h8i5
3) SMA antenna connector: alli.pub/63h8ij
4) SMD resistor kit: ali.pub/4wxnrf
5) A set of SMD capacitors: ali.pub/4zou3o
6) Tantalum Capacitors: ali.pub/4wxo2p
7) A set of SMD inductors: ali.pub/5bt496
8) SMT buttons (12X12X8 SMT): ali.pub/5bt4qh
9) Corner call button (8H): ali.pub/5bt4vc
10) SMD buttons: ali.pub/4zoua3
11) Two-color OLED display: ali.pub/5bt53p
12) Atmega328P microcontroller: ali.pub/5bt55u
13) Variable resistor with switch (B5K + 5 Pins): ali.pub/5bt5ap
14) Aluminum handle: ali.pub/5bt5n5
15) Audio amplifier HXJ8002: ali.pub/5bt6ek
16) Microphone: ali.pub/5bt6nw
17) Quality microphone: ali.pub/5bt6rl
18) Transistor MMBT2222A: ali.pub/5bt732
19) Speakers 8 Ohm 0.5 W: ali.pub/5bt7g3
20) Reference voltage TL431: ali.pub/5bt7j7
21) Charger TP4056: ali.pub/5bt7p1
The most convenient cashback:
LetyShops: goo.gl/Ev5XgI
The most profitable cashback:
Ecomerce: goo.gl/3dDc2w
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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!
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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