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--- projects:electronics:mysensors [2014/11/19 13:19] – photonicsguy
+++ projects:electronics:mysensors [2014/11/27 17:41] – photonicsguy
@@ Line 1: / Line 1: @@
-====== Mysensor board ======
+====== MySensor board ======
+{{ :projects:electronics:mysensors:mysensor_board.jpg?400|}}
+After reading about the [[http://mysensors.org/|MySensors project]], I decided to design a small circuit board to hold the Arduino and radio module.
 Status:
-  * Nov 2014: I'm waiting on the PCB's from [[http://dirtypcbs.com/|Dirtypcbs.com]], slow but cheap.
+  * Nov 25th: I've assembled two working boards. [[http://imgur.com/a/LS5zc|Imgur photos]]
+  * Nov 24th: I received the boards, Yay!!
+  * Nov 7th, 2014: I'm waiting on the PCB's from [[http://dirtypcbs.com/|Dirtypcbs.com]], slow but cheap.
   * Oct 2014: Designed the PCB, {{:projects:electronics:mysensors:nrf24l01_board.schematic.reva.pdf|Schematic}}
   * Oct 2014: I have some component libraries available [[:eagle|here]] for the Arduino mini pro and the NRF24L01+ module.
+<HTML><BR CLEAR="ALL"></HTML>
 ===== Components and layout =====
-I'm using prebuilt modules for the Arduino mini pro and the NRF24L01+ module.
+I'm using prebuilt modules for the Arduino mini pro and the NRF24L01+ module. SOT-23 3.3V voltage regulator. 0805 resistors and capacitors (Soldered on a thru-hole capacitor until the 0805 tantalums arrive)
 **Connections**
-  * 1 x i2c
+  * 1 x I2C
   * 2 x 1-wire
   * 2 breakout connectors for most of the remaining IO pins
+^Qty^Device^Package^Parts^eBay search^
+|1|ARDUINO_MINI_PRO_5V|ARDUINO_MINI_PRO_5V|IC1|New Pro Mini atmega328 5V 16M Replace ATmega128 Arduino Compatible Nano|
+|1|NRF24L01|NRF24L01|IC2|NRF24L01+ Module|
+|1|MIC5219 3.3V|SOT23-5|U3|MIC5219-3.3|
+|1| |MOLEX-1X2|JP1|0.100' crimp connector 2 pos|
+|2| |MOLEX-1X3|JP2 ,JP3|0.100' crimp connector 3 pos|
+|3| |MOLEX-1X4|JP4, JP5, JP6|0.100' crimp connector 4 pos|
+|4|4k7|0805|R1, R2, R4, R5|0805 4.7k|
+|1|10k|0805|R6|0805 10k|
+|omit||0805|R3| |
+|1|470pf|0805|C1|0805 470pf|
+|1|2.2uF|0805|C2|2.2uf 0805 tantalum|
@@ Line 19: / Line 37: @@
 {{:projects:electronics:mysensors:board_top.png?nolink&200|}}
 {{:projects:electronics:mysensors:board_bottom.png?nolink&200|}}
+===== Future Design notes =====
+  * Correct the silkscreen for the I2C connector
+  * Counterset the breakaway tabs slightly
+  * Verify pricing on components before ordering board - 0805 Tantalum caps are pricey
+  * Molex connectors slightly too close to arduino board
+===== Arduino code =====
+  * Also, visit the [[http://mysensors.org/|MySensors project]] for the MySensors library, gateway, and other code.
+  * [[https://github.com/Photonicsguy/MySensors/tree/master/AM2320|AM2320]] - Sensor node for AM2320/AM2321 I2C temperature and humidity module Also reports transmission failure as VAR_2
+  * [[https://github.com/Photonicsguy/MySensors/tree/master/Counter|Counter]] - Testing node, increments a counter once a second as VAR_1, and reports transmission failures as VAR_2
+  * [[https://github.com/Photonicsguy/MySensors/blob/master/EEPROM_read/EEPROM_read.ino|EEPROM reader]] - for debugging purposes, to find the node ID, parent, route, etc...