ESP8266

ESP8266

Allgemeines

• WEMOS - Get started in Arduino
• WEMOS D1 mini
• WEMOS D1 mini Pro
• WEMOS Battery Shield
• http://www.instructables.com/howto/ESP8266/

IRRemote

• IRRemote + Neopixels

MH-Z19B

Nr	Pin	Funktion
1	Vo	Analog output (0.4~2V) or (0~2.5V)
2	Rx	UART(RXD)TTL Level data input
3	Tx	UART(TXD)TTL Level data output
4	SR
5	HD	HD(zero calibration,low level lasting for over 7s under low level is effective)
6	Vin	Vin(4.5~5.5V DC)
7	GND	Ground
8	AOT
9	PWM	PWM

• https://revspace.nl/MHZ19
• User's Manual

Wemos D1 Mini Pins

Pin	Function
TX	TXD
RX	RXD
A0	Analog input, max 3.3V input
D0	IO
D1	IO, SCL
D2	IO, SDA
D3	IO, 10k Pull-up
D4	IO, 10k Pull-up, BUILTIN_LED
D5	IO, SCK
D6	IO, MISO
D7	IO, MOSI
D8	IO, 10k Pull-down, SS
G	Ground
5V	5V
3V3	3.3V
RST	Reset

USB-Serial-Kabel

Kabel

schwarz

rot

grün

weiß

MicroPython

Links:

• Tutorial
• Workshop
• WebREPL

Flashen:

cd ~/MicroPython
esptool.py --port /dev/ttyUSB0 erase_flash
esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash --flash_mode=dout --flash_size=detect 0 esp8266-20171101-v1.9.3.bin

Verbindung aufbauen:

picocom /dev/ttyUSB0 -b115200

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