Hardware Adapter 3.1

Warning

This release is tested in three installations.
More tests to come (see #19)

What's Changed

Firmware

• return valid JSON by @jschroeter in #2
• add docs for Home Assistant integration by @jschroeter in #7
• Refactor JSON and high level parsing by @DaSchaef in #6
• improve action naming + add CALL_INTERNAL by @jschroeter in #11
• 12 build via GitHub actions by @jschroeter in #13
• add merged firmware for esp-web-tools, see #12 by @jschroeter in #14
• Feature/wifi by @DaSchaef in #10
• Better output format for home automation by @DaSchaef in #16

Hardware

• Increased sending (TX) amplification
• Fix receive bug of v3.0, add comparator
• Smaller adapter size
• Better bus terminal connector
• Removed 3.3V LDO (not needed)
• Add more capacitance to 5V (filtering USB noise a bit, give ESP32mini LDO more chance to regulate)
• External 5V supply connector pads

Full Changelog: 3.0...3.1