add pcba images

har-in-air · Mar 28, 2022 · 51033ae · 51033ae
1 parent 096500c
commit 51033ae
Show file tree

Hide file tree

Showing 3 changed files with 11 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -2,7 +2,7 @@
 
 The 'h' is silent, but the vario speaks ...
 
-Kicad 6 schematic and layout for ESP32-C3 + MPU9250 + MS5611 Bluetooth audio vario.
+Kicad schematic and layout for ESP32-C3 + MPU9250 + MS5611 Bluetooth audio vario.
 
 2-layer PCB sized for [Hammond 1551K 80x40x20 mm enclosure.](docs/1551K.pdf)
 
@@ -16,12 +16,21 @@ All SMD passive components use Kicad hand-solderable footprints.
 ## Bottom
 <img src="docs/bottom.png">
 
+## PCBA from JLCPCB
+
+Only SMD parts on bottom layer in JLCPCB `Basic Parts` library were populated for cost reasons. 
+
+<img src="docs/IMG_5385.jpg">
+
+<img src="docs/IMG_5386.jpg">
+
 
 ## Hardware
 
 * AI-Thinker  ESP-C3 12F module (C3FN4)
 * CJMCU-117 IMU module (MPU9250 + MS5611)
-* USB-C Li-Poly battery charging @ 500mA max
+* 74HC240 used as push-pull piezo driver
+* USB-C Li-Poly battery charging @ 500mA max with MCP73871
 * Soft-switched power on/off
 
 You can find the firmware [here](https://github.com/har-in-air/ESP32C3_BLUETOOTH_AUDIO_VARIO).
diff --git a/docs/IMG_5385.jpg b/docs/IMG_5385.jpg
diff --git a/docs/IMG_5386.jpg b/docs/IMG_5386.jpg