eddy/stm32samples
1
0
Fork 0
mirror of https://github.com/eddyem/stm32samples.git synced 2025-12-06 10:45:11 +03:00
Code Issues Packages Projects Releases Wiki Activity
stm32samples/F0-nolib/TM1637/Readme.md
eddyem a4c08dc741 add TM1637 writing commands
2019-06-05 17:04:50 +03:00

647 B
Raw Blame History

4-digit "time" LED indicator based on TM1637

FOR STM32F051!!! WARNING! Only writing data!!! Can't read keys state.

GPIO

  • I2C: PB6 (SCL) & PB7 (SDA)
  • USART1: PA9/PA10

UART

115200N1, not more than 100ms between data bytes in command. To turn ON human terminal (without timeout) send "####".

Protocol

All commands are in brackets: [ command line ].

'[' clears earlier input; '\n', '\r', ' ', '\t' are ignored. All messages are asynchronous!

Commands

0..9 - send data A - display 'ABCD' G - get keyboard status (don't work) Hhex - display 'hex' as hex number Nnum - display 'num' as decimal number