From c96e2ff210e77f54fe5f5fb25d3b43d8fd43ddaf Mon Sep 17 00:00:00 2001 From: Ray Jones Date: Sun, 3 Feb 2019 05:45:31 +0000 Subject: [PATCH] Update README.md --- README.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 8e994ce..a308bb8 100644 --- a/README.md +++ b/README.md @@ -5,7 +5,9 @@ Bluetooth & WiFi interface for Chinese Diesel Heaters Requirements -------------------------- * Requires "blue wire" compatible heater unit -* Blue wire interface circuitry - please refer to the hardware design schematics in the wiki for guidance. It is important to take note that the blue wire is 5V logic, an ESP32 is 3.3V. Level translation is important! +* Blue wire interface circuitry - please refer to the hardware design schematics in the wiki for guidance. + It is important to take note that the blue wire is 5V logic, an ESP32 is 3.3V. + Level translation is important! * ESP32 dev module * HC-05 Bluetooth module - preferably exposing the key pin, not power control) * DS18B20 one wire temperature sensor