From 6e223cf791845e730a094949dd0ccbb8f0f59a18 Mon Sep 17 00:00:00 2001 From: Kris Winer Date: Sat, 13 Jun 2015 22:13:55 -0700 Subject: [PATCH] Update README.md --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index 08d9295..898fb56 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,8 @@ EM7180_SENtral_sensor_hub ========================= +[https://cloud.githubusercontent.com/assets/6698410/8147322/5626d762-1219-11e5-9cda-015815a06b23.jpg] + There are two kinds of files in this repository. The FirmwareUpload.ino file is a sketch that takes the firmware file xxx.fw (~22 kbyte) generated by the EM7180 [SENtral Tool Kit Configuration](http://www.emdeveloper.com/?page_id=105) tool and writes it to an ST Microelectronics M24512DFM/C EEPROM from an SD card. Both the SD card and the [SENtral breakout board](https://www.tindie.com/products/onehorse/em7180-sentral-sensor-hub-with-bmx055-motion-sensor/) need to be connected to a microcontroller; I use the Teensy 3.1. The SENtral breakout board is connected to the Teensy 3.1 I2C port on pins 16 and 17 and the SD card reader is connected to the SPI port on pins 10-13. Once the firmware is loaded onto the EEPROM it doesn't have to be done again unless the firmware changes or is updated; the SENtral reads the firmware upon power on and gets the information it needs about the particular sensors on the board.