diff --git a/README.md b/README.md
index f3acb247..4cb78bcb 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # CubeSatSim
 
-See the Wiki for more details. To build and run the software:
+See the Wiki for more details. To build and run the software on a Raspberry Pi 3B, 3B+, or Pi Zero W:
 
 `git clone http://github.com/alanbjohnston/CubeSatSim.git`
 
@@ -16,13 +16,15 @@ To stop, Ctrl-C.  To hear AFSK telemetry (X.25 data), your radio or SDR to 440.3
 
 `./radioafsk`
 
-Raspberry Pi code using the Brandenburg Tech Digital Transceiver 
+This code uses the Brandenburg Tech Digital Transceiver, based on DigitalTxRxRP 
      https://brandenburgtech.wordpress.com/- 
      
  - cw - Code that sends telemetry in CW (Morse code) using AO-7 format
  - afsk - Code that sends telemetry in 1k2 AFSK X.25 format
+ - ax5043 - Source for a library of functions to communicate with the AX5043 and configure the AX5043.
+ - libs - External libraries
+ - python - Python code for reading I2C sensors for current and temperature
+ - spreadsheet - Spreadsheets and macros for analyzing the Simulator telemetry
+ - wav - Wave audio files of CW or AFSK telemetry for listening or transmitting usng a CubeSat Simulator Lite
 
-based on DigitalTxRxRP
-
-- ax5043 - Source for a library of functions to communicate with the AX5043 and configure the AX5043.
-
+See the Wiki for more details