From 9c07c2b85d908f699f8ba590b1d60232157eca90 Mon Sep 17 00:00:00 2001
From: Nathan Perry <np@npry.dev>
Date: Wed, 23 Oct 2024 22:57:18 -0400
Subject: test_fw: read veml and bme

---
 test_fw/include/i2c_scan.h | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 test_fw/include/i2c_scan.h

(limited to 'test_fw/include/i2c_scan.h')

diff --git a/test_fw/include/i2c_scan.h b/test_fw/include/i2c_scan.h
new file mode 100644
index 0000000..1fc81c1
--- /dev/null
+++ b/test_fw/include/i2c_scan.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include <Arduino.h>
+#include <Wire.h>
+
+namespace ocularium {
+    inline void scan(TwoWire& wire, bool post_delay = true)
+    {
+        for(auto address = 1; address < 127; address++)
+        {
+            wire.beginTransmission(address);
+            const uint8_t error = wire.endTransmission();
+
+            if (error == 0)
+            {
+                Serial.print("I2C device found at address 0x");
+                if (address<16)
+                    Serial.print("0");
+                Serial.print(address,HEX);
+                Serial.println();
+            }
+            else if (error==4)
+            {
+                Serial.print("Unknown error at address 0x");
+                if (address<16)
+                    Serial.print("0");
+                Serial.println(address,HEX);
+            }
+        }
+
+        if (post_delay)
+        {
+            // Let the bus settle before doing anything else.
+            delay(10);
+        }
+    }
+}
\ No newline at end of file
-- 
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