README update

.gitignore

@@ -30,3 +30,4 @@
 *.exe
 *.out
 *.app
+.DS_Store

README.md

@@ -4,15 +4,17 @@ LightTracker is one of the most affordable, smallest, lightest, powerful and ope
 It is able to report location, altitude, temperature and pressure to the internet (LoRaWAN networks such as Helium and TTN) or direct to another LoRa radio module with a solar panel/super capacitors or just 4xAAA batteries. 
 Because LightTracker is open source you can add your own custom sensors via I2C/SPI pins.
 
-LightTracker will be available on https://shop.qrp-labs.com/ for order soon.
+LightTracker will be available on https://shop.qrp-labs.com/ for order soon. If you are interested in, please contact sales@lightaprs.com
+
+<img src="images/lighttracker-b-pinout.png" width="600">
 
 **Important :** LightTracker uses unlicensed ISM radio bands which does not require any license to operate. So everone can use LoRa & LoRaWAN modules.
  
 ## Basic Features
 
 - **Software** : Open Source
-- **Weight** : 5.5 grams
-- **Dimensions**    : 32 mm x 47 mm
+- **Weight** : 5.4 grams
+- **Dimensions** : 32 mm x 47 mm
 - **IDE** : Arduino
 - **Platform** : ARM Cortex-M0 (Arduino M0)
 - **CPU** : ATSAMD21G18
@@ -24,7 +26,7 @@ LightTracker will be available on https://shop.qrp-labs.com/ for order soon.
 - **Sensor** : BMP180 (pressure and temperature), LSM303DLHC (3D Compass and Accelerometer)
 - **Power Consumption (Sleep)** : ~1 mA
 - **Power Consumption** : ~7 mA
-- **LoRa Radio Module** : EBYTE E22-900M22S (SX1262)
+- **LoRa Radio Module** : [EBYTE E22-900M22S](https://www.ebyte.com/en/product-view-news.aspx?id=437) (SX1262)
 - **LoRa Operating Frequency** : 850~930MHz (configurable by code)
 - **LoRa Max Power** : 22dBm (configurable by code)
 - **LoRa Power Consumption (TX)** : ~110 mA (22dBm)
@@ -32,3 +34,9 @@ LightTracker will be available on https://shop.qrp-labs.com/ for order soon.
 - **GPS Antenna Gain** : 4.3 dBi
 - **Extended Pins** : I2C, 2x Analog, 1x DAC
 
+<img src="images/lighttracker-b-weight.jpg" width="600">
+
+## Wiki
+
+We'll share more information (sample codes, guides, FAQs, etc.) soon.
+