Use FTDI to write Arduino Pro Mini

BOM

• FTDI USBシリアル変換アダプター Rev.2 @1,080

• HiLetgo® 3個セット pro mini ATMEGA328P 5V 16MHz Arduino PRO miniと互換 [並行輸入品] @1,060/3

Connection

Arduino IDE

Tool

code

void setup() {
  Serial.begin(9600);
}

void loop() {
  Serial.print("*****");
  delay(200);
  Serial.print("sample");
  delay(500);
  Serial.println("*****");
  delay(200);
  Serial.println("こんにちは");
  delay(200);
  Serial.println('a');
  delay(200);
  Serial.println(1);
  delay(200);
}

Use Arduino_UNO_ISP to write Arduino Pro Mini

Making Arduino UNO A Programmer

• Connect Arduino Uno to PC by USB
• Select Board: Arduino UNO
• Code: ArduinoISP from sample sketch
• Write the sketch

Write a sketch to Arduino Pro Mini from ArduinoISP

• Connect Arduino Uno to PC by USB
• No need to connect Arduino Pro Mini to PC
• Connect Arduino Uno(ISP) to Arduino Pro Mini
• 10µF Capacitor connected to RESET and GND
• ref.Arduino as ISP and Arduino Bootloaders
  
• Open a sketch for Arduino Pro Mini
• Select programmer : Arduino as ISP
• 
• Write the sketch from programmer
• 

Write a sketch to ATmwga328P from ArduinoISP

• ref. Arduino for other Chips
• MiniCore
• ATmega328/A/P/PA/PB, ATmega168/A/P/PA/PB, ATmega88/A/P/PA/PB, ATmega48/A/P/PA/PB, ATmega8/A
• Arduino IDE > menu > Preferences > Additional Boards Manager > https://mcudude.github.io/MiniCore/package_MCUdude_MiniCore_index.json
• Minimal setup
• DIP-28 package
  • 
  • 
• TQFP-32-SMD-package
  • 
  • 
• TQFP-32-SMD-PB- package
  • 
  • 

Connection DIP-28

ArduuinoUNO-ISP to 328P

void setup() {
  pinMode(9, OUTPUT);
}

void loop() {
  digitalWrite(9, HIGH);
  delay(1000);
  digitalWrite(9,LOW);
  delay(2000);

} 

Capaciter

表記	ピコ（p)	ナノ(n)	マイクロ(u)
10	10pF
101	100pF
102	1000pF	1nF	0.001uF
103	10000pF	10nF	0.01uF
104	100000pF	100nF	0.1uF
105	1000000pF	1000nF	1uF

100nF=100x1000pF=10x10^1x10^3pF=10x10^4->104

Burning the Bootloader

From Arduino to a Microcontroller on a Breadboard

FTDI driver

$ kextstat | grep -i ftdi