update for bc832

rf/nrf52832/index.html

@@ -120,8 +120,13 @@ void loop() {}
 </code>
 </pre>
 
-<p>This test was run on a board built around the Fanstel BC832 module.  The module retails for $7, but other modules are available for $5 from Fanstel.</p>
+<p>This test was run on a board built around the Fanstel BC832 module.  The module retails for $7, but other modules are available for $5 from Fanstel.  This board has a place for an external 32.768 kHz oscillator, but this isn't necessary and rings at the same speed without it populated. <a href='bc832-nrf-ftdi-traces.png'>BC832 Board Traces</a> <a href='bc832-nrf-ftdi-interior.png'>BC832 Board Interior</a></p>
 
+<img src='bc832-nrf-ftdi-layout.png' width=30%>
+<img src='board.jpg' width=47%>
+
+
+<p>As seen in the datasheet excerpt below, the NRF52 has faster times for switching between TX and RX as compared to many other transceiver chips.</p>
 
 <figure>
 <img src='radio-modes.png' width=80%>