ESP8266-I2C-Driver
brzo_i2c
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| ESP8266-I2C-Driver | brzo_i2c | |
|---|---|---|
| 2 | 1 | |
| 75 | 243 | |
| - | - | |
| 1.8 | 0.0 | |
| almost 3 years ago | over 2 years ago | |
| C++ | C | |
| - | GNU General Public License v3.0 only |
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ESP8266-I2C-Driver
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question: How can i use two MAX30102 i2c sensors with an esp8266 that have the same address?
I haven't seen anyone use that particular library with the ESP8266 yet. I've personally tried the core Wire library, the Enjoyneering library, and the brzo_i2c library. The only issue I see offhand with that Multi_Bitbang library is at line 185 in the source: it's only waiting a half bit-time for the ACK, which will fail (NACK) with any part that does clock stretching; it won't see the ACK. The I2C spec allows for slave clock stretching on any of the bits, although I've only seen stretches on the ACK bit myself with the parts I've used.
brzo_i2c
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question: How can i use two MAX30102 i2c sensors with an esp8266 that have the same address?
I haven't seen anyone use that particular library with the ESP8266 yet. I've personally tried the core Wire library, the Enjoyneering library, and the brzo_i2c library. The only issue I see offhand with that Multi_Bitbang library is at line 185 in the source: it's only waiting a half bit-time for the ACK, which will fail (NACK) with any part that does clock stretching; it won't see the ACK. The I2C spec allows for slave clock stretching on any of the bits, although I've only seen stretches on the ACK bit myself with the parts I've used.
What are some alternatives?
NintendoExtensionCtrl - Arduino library for communicating with Nintendo extension controllers
Arduino - ESP8266 core for Arduino
NeoPixelBus - An Arduino NeoPixel support library supporting a large variety of individually addressable LEDs. Please refer to the Wiki for more details. Please use the GitHub Discussions to ask questions as the GitHub Issues feature is used for bug tracking.
PCF8575_library - i2c 16bits digital expander with i2c digital expander for Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266. Can read write digital values with only 2 wire. Very simple and encoder support. Uncommet NOT_SEQUENTIAL_PINOUT define to have pins like datasheet and not sequential one.
ESP32_I2C_Slave - I2C slave library for ESP32
Multi_BitBang - A software I2C implementation to create multiple I2C buses using GPIO lines
RemoteDebug - Library for Arduino to debug projects over WiFi, with web app or telnet, with print commands like Serial Monitor