DTLS Reverse Proxy

Lightweight DTLS reverse proxy server based on tinydtls and libev.

https://github.com/julznc/dtlsproxy

ATtiny IR Remote

ATtiny2313 Infrared Sender

parts:

• ATtiny2313 @4MHz (internal oscillator)
• IR LED (series with 220-ohm resistor)
• Tact switches
• 3.7V lithium ion battery & Capacitor

avr-gcc (main.c) code:


References:
ESP8266 IR Remote
z3t0/Arduino-IRremote
ATtiny Low Power

ESP8266 IR Remote

Control your appliances (e.g. TV and AV systems) via WiFi+IR.




Arduino code:


References:
markszabo/IRremoteESP8266
Sony IR codes
Sony SIRC protocol

WiFi RGB Matrix

Here's a DIY flexible 36x8 RGB-LED-matrix controlled via WiFi connection using an ESP8266 module.



Arduino Code: julznc/wifi_rgb_matrix


Assembly:

References:
NeoPixelBus - for interfacing WS2812 LEDs to ESP8266 controller
Adafruit-GFX-Library - with font library for displaying texts
LED Matrix Studio - for creating bitmap images