Workaround fix for ESP32 #10

i2c known issue: espressif/arduino-esp32#839
lexus2k · Dec 4, 2017 · 2098cb8 · 2098cb8
1 parent 6b035c8
commit 2098cb8
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/i2c/ssd1306_i2c_wire.cpp b/src/i2c/ssd1306_i2c_wire.cpp
@@ -64,8 +64,8 @@ void ssd1306_i2cConfigure_Wire(int8_t scl, int8_t sda)
 void ssd1306_i2cSendByte_Wire(uint8_t data)
 {
  // Do not write too many bytes for standard Wire.h. It may become broken
-#if defined(I2C_BUFFER_LENGTH)
- if (s_bytesWritten >= (I2C_BUFFER_LENGTH >> 1))
+#if defined(ESP32) || defined(ESP31B)
+ if (s_bytesWritten >= (I2C_BUFFER_LENGTH >> 4))
 #elif defined(BUFFER_LENGTH)
  if (s_bytesWritten >= (BUFFER_LENGTH >> 1))
 #else