HTTP/2 200 date: Sun, 28 Dec 2025 09:19:55 GMT content-type: text/html; charset=utf-8 server: cloudflare last-modified: Tue, 24 Dec 2024 12:35:33 GMT access-control-allow-origin: * expires: Sun, 28 Dec 2025 09:29:55 GMT cache-control: max-age=600 report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=psnt7zxB9oz5TtXod9zILP%2BKEudDD%2BM5MfVG9JHjxKAOBIHLteCexhJ9C%2F7NbYFgYBWwUs1nSrV0yNXdALdCsQ%2BGRTEpcnTXwd8%3D"}]} x-proxy-cache: MISS x-github-request-id: 81ED:3A7A40:76B7B8:851A53:6950F63A nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} age: 0 via: 1.1 varnish x-served-by: cache-bom-vanm7210085-BOM x-cache: MISS x-cache-hits: 0 x-timer: S1766913595.255420,VS0,VE215 vary: Accept-Encoding x-fastly-request-id: 2669c7c8751b9a3dae36d6132f62a7edcbcbd09c cf-cache-status: DYNAMIC content-encoding: gzip cf-ray: 9b4ffa915ed16cd7-BOM alt-svc: h3=":443"; ma=86400

Pine

🌲 An indoor infrared receiver and transmitter with a temperature sensor 🎐

power AA

wireless Infrared

mcu SAMD21G18

bom items 49

bom cost USD $9.71

vendors 2

completed September 2020

• Start
• Code
• PCB
• Bill of Materials
• Design
• Power
• CSQ
• Resources

Similar projects

Project	Attributes
CHUNGHOP Universal Air Conditioner Remote Controls consumer USD 8
Xiaomi Mijia IR Blaster Remote Control consumer 2019 USD 20	wifi
Nature Remo Mini consumer 2020 USD 69	wifi temperature sensor
IR Blaster with CEC developer 2017	raspberry pi IR receiver : RMP7100 software : Home Assisstant
IR Kit developer 2018	mcu : ATMEGA32U wifi : GX1011MX ir led : VSLB3940
Logitech Harmony 350 universal remote consumer	demo : How to Program Your LOGITECH Universal Remote to ANY Device!

Infrared

1. IRLib2
2. Infrared receiver with supported protocols
3. Receiving and Decoding IR tutorial by Adafruit
4. Infrared receiver for raw codes
5. Raw receive code example
6. IR Emitter
7. 171 Arduino Guide to Infrared (IR) Communication also for ESP32 and ESP8266 by Andreas Spiess
8. How should I wire up the circuit to connect a TSOP4838 (Radio Shack 276-64) infrared receiver to an Arduino?

Increasing IR LED range

1. IR LED doesn't work from a distance?
2. Increase IR transmitter directivity and range
3. How to get the best range out of an IR LED?

SAMD21

1. Arduino Zero
2. ATmel SAMD21 Datasheet
3. RobotDyn SAMD21 M0-Mini
4. RobotDyn SAMD21 M0-Mini pinout
5. Arduino M0 Schematic
6. RobotDyn M0 Mini Schematic
7. Adafruit M0 Express Schematic

Bootloader

1. Arduino M0 bootloader
2. Adafruit Adalink to automate flashing ARM CPUs with new program code using a Segger J-link or STMicro STLink V2 device
3. How to burn / flash a bootloader into an external ATSAMD21
4. SWD Header pinout
5. How to burn Arduino Zero bootloader to an Atmel ATSAMD21G18-based custom dev board
6. ATSAMD21g18 Bootloader With J-link Debugger
7. Converting an STM32F103 board to a Black Magic Probe
8. JTAG/SWD debugging via Black Magic Probe on an STM32 blue pill and blinking a LED using STM32CubeMX, libopencm3, and bare metal C
9. Topic burn arduino zero's bootloader to SAMD21 with STlink_v2

Transistor

1. Transistors by Sparkfun
2. NPN Transistor

Power and battery

1. switch between battery and usb power no microcontroller circuit
2. Powering MCU from both USB or Battery
3. LTC4412
4. Measuring battery voltage in Adafruit feather M0
5. Measuring Lithium battery voltage with nRF52
6. RC Charging Circuit

Sleep

1. MKR Zero board goes to sleep mode and wake up periodically
2. Arduino RTC Library for SAMD21 based boards

Web USB

1. Access USB Devices on the Web
2. webusb arduino
3. List of USB ID's
4. Why Arduino UNO cannot be used with webusb

EFM32 (not used in this project)

1. EFM32 HG Datasheet page 112/168, Section 5.6.1 Pinout
2. Tomu samples
3. Tomu bootloader

Design

1. On-Off controller
2. PID controller