== Wiring ==

There will be (16) 14-pin headers for vial controls.  The pinout is as follows:

|| *Pin* || *Function* || *Module No* ||
|| 1 || Spare_A + || 7 ||
|| 2 || Spare_A - || 7 ||
|| 3 || Spare_B + || 6 ||
|| 4 || Spare_B - || 6 ||
|| 5 || !PhotoDiode + || 5 ||
|| 6 || !PhotoDiode - || 5 ||
|| 7 || LED + || 4 ||
|| 8 || LED - || 4 ||
|| 9 || !TempSensor + || 3 || 
|| 10 || !TempSensor - || 3 ||
|| 11 || Heater + || 2 ||
|| 12 || Heater - || 2 ||
|| 13 || Motor + || 1 ||
|| 14 || Motor - || 1 ||

There will be (7) sites for plug-in Analog or PWM boards.
Each plug-in module will have two 25-pin headers with pinout given below.
In addition there are two 10-pin headers on the PWM boards to supply 24V power.

|||||| '''Left''' |||| '''Right''' ||
|| 1  || GND   || Signal GND               ||  2  || Signal GND              ||
|| 3  || CH00  || Analog !In/Out channel 0 ||  4  || Analog !In/Out channel 1 ||
|| 5  || PWR   || Analog Power (24V)       ||  6  || Analog Power (24V)      ||
|| 7  || CH02  || Analog !In/Out channel 2 ||  8  || Analog !In/Out channel 3 ||
|| 9  || PWR   || Analog Power (24V)       ||  10 || Analog Power (24V)      ||
|| 11 || CH04  ||                          ||  12 ||                         ||
|| 13 || PWR   ||                          ||  14 ||                         ||
|| 15 || CH06  ||                          ||  16 ||                         ||
|| 17 || PWR   ||                          ||  18 ||                         ||
|| 19 || GND   ||                          ||  20 ||                         ||
|| 21 || CH08  ||                          ||  22 ||                         ||
|| 23 || PWR   ||                          ||  24 ||                         ||
|| 25 || CH10  ||                          ||  26 ||                         ||
|| 27 || PWR   ||                          ||  28 ||                         ||
|| 29 || CH12  ||                          ||  30 ||                         ||
|| 31 || PWR   ||                          ||  32 ||                         ||
|| 33 || CH14  ||                          ||  34 ||                         ||
|| 35 || PWR   ||                          ||  36 ||                         ||
|| 37 || GND   || Signal GND               ||  38 || Signal GND              ||
|| 39 || CTRL0 || Control logic I/O 0      ||  40 || Analog Ref              ||
|| 41 || CTRL1 || Control logic I/O 1      ||  42 || Analog Out              ||
|| 43 || CTRL2 || Control logic I/O 2      ||  44 || -spare-                 ||
|| 45 || CTRL3 || Control logic I/O 3      ||  46 || 5V                      ||
|| 47 || CTRL4 || Control logic I/O 4      ||  48 || 5V                      ||
|| 49 || GND   || Signal GND               ||  50 || Signal GND              ||

There will be four sites for ARM processor modules (SparkFun SAM D21 mini breakout)
with 24 pins each.  Wiring to the analog/PWM sites will be as shown in the block diagram.
Below is the pin wiring for the processor sites.  Note that the odd numbering matches
that on the SparkFun schematic.

|||||| '''Left''' |||||||| '''Right''' ||
|| Route to RS-485 TXn || Tx   || 12 ||   ||  1 || Vin      || 5V             ||
|| Route to RS-485 RXn || Rx   || 11 ||   ||  2 || GND      || GND            ||
|| -nc-                || nRST || 10 ||   ||  3 || AREF     || -nc-           ||
|| GND                 || GND  ||  9 ||   ||  4 || 3.3V     || -nc-           ||
|| CTRL0 to PWM        || D2   ||  8 ||   ||  5 || A3       || CTRL3 to ADC   ||
|| CTRL1 to PWM        || D3   ||  7 ||   ||  6 || A2       || -nc-           ||
|| CTRL2 to PWM        || D4   ||  6 ||   ||  7 || A1       || -nc-           ||
|| CTRL3 to PWM        || D5   ||  5 ||   ||  8 || A0       || ADC Analog Out ||
|| CTRL4 to PWM        || D6   ||  4 ||   ||  9 || D13/SCK  || -nc-           ||
|| CTRL0 to ADC        || D7   ||  3 ||   || 10 || D12/MISO || -nc-           ||
|| CTRL1 to ADC        || D8   ||  2 ||   || 11 || D11/MOSI || RS-485 TXEn    ||
|| CTRL2 to ADC        || D9   ||  1 ||   || 12 || D10/SS   || -nc-           ||



There will be one site for a four-channel RS-485 transceiver board.  Pinout below.

|||| '''Left''' || ----- |||| '''Right''' ||
||  1 || GND ||  || GND ||  1 ||
||  2 || Tx1 ||   || Tx3 ||  2 ||
||  3 || Rx1 ||   || Rx3 ||  3 ||
||  4 || En1 ||   || En3 ||  4 ||
||  5 || Tx2 ||   || Tx4 ||  5 ||
||  6 || Rx2 ||   || Rx4 ||  6 ||
||  7 || En2 ||   || En4 ||  7 ||
||  8 || 5V  ||   || A   ||  8 ||
||  9 || GND ||   || B   ||  9 ||


== Power ==

* Samtec "Power Mate" Family (~10A/pin)
 * PMSS series cables, mates with IPBT connectors
* Molex ultra-fit (~10A/pin)
 * WM11876-ND (header)
 * WM11642-ND (plug)
 * WM11558CT-ND (crimp terminal 16-18 AWG)

== Other Notes ==

Need RS-485 transceivers, e.g. Digi-Key 497-6540-1-ND