From cc1500c42652d838781f614a99a89feff69334ed Mon Sep 17 00:00:00 2001 From: Brian Rogers Date: Mon, 6 Apr 2026 11:16:58 -0600 Subject: [PATCH] added some comments to clarify things --- src/main.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/main.c b/src/main.c index ea22ffb..a46f73d 100644 --- a/src/main.c +++ b/src/main.c @@ -35,7 +35,8 @@ int8_t check_file_exists(const char *filename) void user_delay_ms(uint32_t period) { - usleep(period*1000); + //usleep(period*1000); // if using gnu99 + sleep(period*1000); // if using c99 } #ifdef BME280_FLOAT_ENABLE @@ -231,8 +232,8 @@ int main(int argc, char* argv[]) exit(1); } - dev.dev_id = BME280_I2C_ADDR_PRIM; //0x76 - //dev.dev_id = BME280_I2C_ADDR_SEC; //0x77 + //dev.dev_id = BME280_I2C_ADDR_PRIM; //0x76 (if orange/pin 5 is connected to ground on Pi) + dev.dev_id = BME280_I2C_ADDR_SEC; //0x77 (if orange/pin 5 is connected to 3.3V on Pi) dev.intf = BME280_I2C_INTF; dev.read = user_i2c_read; dev.write = user_i2c_write;