septembre

WS1209 Reverse

May 21st, 2016
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  1. # Info WS1209
  2.  
  3. Generic Chinese low-cost temperature control board with the following features:
  4.  
  5. * Microcontroller [STM8S003F3][DS1] with SWIM interface
  6. * Molex connector for 10k NTC
  7. * 3 digit 7s LED [2381AS][DS3]
  8. * [AMS1117-5.0][DS2] 5V regulator
  9. * Relay 12V - 125V / 20A with control LED
  10.  
  11. ## Connection STM8S003F3
  12.  
  13. ![STM8S003F](./STM8S003F3.png)
  14. Pin|STM|Connected to|Pin|STM|Connected to
  15. -|-|-|-|-
  16. 1|PD4 |DIG1 (200R) | 20| PD3|7S-D
  17. 2|PD5|7S-A| 19|PD2|7S-DP
  18. 3|PD6/AIN6|5V - [Rref 20k - Ain - NTC][L1] - GND| 18|PD1/SWIM|7S-E / Prog Pin2
  19. 4|NRST|Prog Pin3| 17|PC7| 7S-C
  20. 5|PA1|7S-F| 16|PC6|7S-G
  21. 6|PA2|7S-B| 15|PC5| Key "-"
  22. 7|VSS|+5V| 14|PC4| Key "+"
  23. 8|Vcap|C| 13|PC3| Key "set"
  24. 9|VDD|GND| 12|PB4|DIG3 (200R)
  25. 10|PA3|Relay (2k/10k - NPN, Relay, LED)| 11|PB5|DIG2 (200R)
  26.  
  27. ## SWIM Interface
  28. Pin|Name
  29. -|-
  30. 1|VSS +5V
  31. 2|SWIM
  32. 3|NRST
  33. 4|GND
  34.  
  35. ## HS2381AS 3 Digit-7S LED Display
  36. ![HS2381AS ](./HS2381AS_face.png)
  37. ![HS2381AS ](./HS2381AS_schem.png)
  38.  
  39. [L1]: https://www.embeddedrelated.com/showarticle/91.php
  40. [DS1]: http://www.st.com/content/ccc/resource/technical/document/datasheet/42/5a/27/87/ac/5a/44/88/DM00024550.pdf/files/DM00024550.pdf/jcr:content/translations/en.DM00024550.pdf
  41. [DS2]: http://pdf1.alldatasheet.com/datasheet-pdf/view/205692/ADMOS/AMS1117-5.0.html
  42. [DS3]: http://www.datasheetarchive.com/dl/Datasheets-SW20/DSASW00381761.pdf
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