Mcp23017: Skirtumas tarp puslapio versijų
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(Naujas puslapis: 300px 600px This port expander provides you 16 more GPIOs and cost you around 1€. And be...) |
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| 7 eilutė: | 7 eilutė: | ||
= ESP32 Wiring = | = ESP32 Wiring = | ||
| − | * SDA -> | + | * SDA -> pin 21 |
| − | * SCL -> | + | * SCL -> pin 22 |
* VSS -> GND | * VSS -> GND | ||
* VDD -> VIN | * VDD -> VIN | ||
| 21 eilutė: | 21 eilutė: | ||
[[Category:Hardware]] | [[Category:Hardware]] | ||
| − | [[ | + | [[Category:ESP32]] |
[[Category:ESP8266]] | [[Category:ESP8266]] | ||
03:37, 26 lapkričio 2022 versija
This port expander provides you 16 more GPIOs and cost you around 1€. And because it communicates via I²C it only uses two GPIOs of your ESP8266 and you can address up to 8 MCP23017. That makes up to 126 additional GPIOs.
ESP32 Wiring
- SDA -> pin 21
- SCL -> pin 22
- VSS -> GND
- VDD -> VIN
- 17 -> GND
- 16 -> GND
- 15 -> GND
ESP8266
https://medium.com/@wilko.vehreke/more-gpios-for-the-esp8266-with-the-mcp23017-b89f5e15cde3