diff --git a/README.md b/README.md index 0c5087f..f318be2 100644 --- a/README.md +++ b/README.md @@ -6,10 +6,10 @@ Yet another Nixie clock project! Some highlights: -* K155ID1 driven IN-12A or IN-12B tubes for hour, minute, seconds -* BS108 driven IN-6 or similar neon bulbs for digit separation +* K155ID1 driven IN-12A or IN-12B tubes for hour, minute, seconds. Use 36k resistors on these tubes. +* BS108 driven IN-6 or [similar 4*10mm neon bulbs](https://www.aliexpress.com/item/32344955038.html?spm=a2g0s.9042311.0.0.6ab14c4dCxpPZ0) for digit separation. Use 270k resistors on these bulbs. * 74HC595 for serial to parallel conversion -* ESP8266 for time synchronization +* ESP8266 for time synchronization. Use 1k resistors for pull-up. * LM1117-3.3V and LM1117-5V regulators for logic power supply * No tube step up converter on-board, pin headers for connecting third party power supply