From 97893cd873281e67659ab21a2769a54d00be22ee Mon Sep 17 00:00:00 2001 From: deadprogram Date: Sat, 6 May 2017 10:08:02 +0200 Subject: [PATCH] joule: add pin naming system changes to README Signed-off-by: deadprogram --- platforms/intel-iot/joule/README.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/platforms/intel-iot/joule/README.md b/platforms/intel-iot/joule/README.md index 6177bf50..5985932f 100644 --- a/platforms/intel-iot/joule/README.md +++ b/platforms/intel-iot/joule/README.md @@ -20,7 +20,7 @@ Everything you need to get started with the Joule is in the Intel Getting Starte https://intel.com/joule/getstarted -Don't forget to configure your Joule's wifi connection and update your Joule to the latest firmware image! +Don't forget to configure your Joule's WiFi connection and update your Joule to the latest firmware image. Gobot has been tested using the reference OS based on Ostro. ## How To Use @@ -83,10 +83,10 @@ over once again and start it from the command line (via screen). ## Pin Mapping -The Gobot pin mapping for the Intel Joule uses the same numbering as the MRAA library does, as documented here: +The Gobot pin mapping for the Intel Joule uses a naming system based on how the pins are labeled on the board itself. -https://software.intel.com/en-us/pin-mapping-for-carrier-board-joule +There are 2 jumpers on the Joule expansion board, labeled "J12" and "J13". There are 2 rows of pins on each jumper, labeled from 1 to 40. So to use the 26th pin of jumper J12, you use pin name "J12_26". -Of special note are the pins that control the build-in LEDs, which are pins 100 thru 103, as used in the example above. +In addition, there are pins that control the build-in LEDs (pins 100 thru 103) as used in the example above. The i2c interfaces on the Intel Joule developer kit board require that you terminate the SDA & SCL lines using 2 10K resistors pulled up to the voltage used for the i2c device, for example 5V.