groundwork for BMS

include/i2c.h

@@ -0,0 +1,26 @@
+#ifndef I2C_HELPER_H
+#define I2C_HELPER_H
+#include "driver/gpio.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// I2C Configuration (Match your schematic)
+#define I2C_MASTER_SCL_IO           GPIO_NUM_23   // Example GPIO for C6
+#define I2C_MASTER_SDA_IO           GPIO_NUM_22  // Example GPIO for C6
+#define I2C_MASTER_NUM              0
+#define I2C_MASTER_FREQ_HZ          100000        // use standard freq 
+#define I2C_MASTER_TIMEOUT_MS       1000
+
+esp_err_t i2c_init();
+esp_err_t max17048_read_reg(uint8_t reg_addr, uint8_t *MSB, uint8_t *LSB);
+esp_err_t max17048_write_reg(uint8_t reg_addr, uint8_t MSB, uint8_t LSB);
+esp_err_t max17048_friendly_write_reg(uint8_t reg_addr, uint8_t MSB, uint8_t LSB,
+                                      uint8_t MSBmask, uint8_t LSBmask);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif