0.18.0

• new devices
  • apds9960: add support for APDS-9960 Digital Proximity sensor
  • axp192: add support for AXP192 single Cell Li-Battery and power system management IC
  • hts221: add support for HTS221 capacitive digital sensor for relative humidity and temperature
  • i2csoft: add support for software I2C
  • image: add support for image/jpeg and image/png
  • lps22hb: add support for LPS22HB MEMS nano pressure sensor
  • lsm6dox: add support for lsm6dox accelerometer
  • lsm9ds1: add support for lsm9ds1 accelerometer
• enhancements
  • ili9341: change to use drivers.SPI interface
  • ws2812
    • generate assembly instead of handwriting it
    • improve timings to be compatible with the WS2811
    • add support for 168MHz (e.g. Adafruit Feather STM32F405)
    • add support for RISC-V
  • wifinina: control nina pins, for example leds
• docs
  • rtl8720dn: examples for tcpclient, udpstation, mqtt, and webserver
  • wifinina
    • nina-fw update docs
    • examples/wifinina/http-get
  • ili9341: refactor examples
  • Fix broken link for SHT3x datasheet
• core
  • all: use build directives for both Go1.17 and earlier versions
• bugfixes
  • net: fix raddr of tcp conn
  • mcp3008: fix bitshift bug