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8	8
9	9	= Description =
10	10
11		-The Lynxmotion LSS-2IO ("Lynxmotion Smart Servo To Input / Output") module was designed as a multi-purpose, Arduino programmable board intended to "bridge the gap" between a Lynxmotion Smart Servo (LSS) serial bus and regular 3-pin RC servos and 5V sensors. Although a default program is included when shipped, it can be re-programmed using the standard Arduino IDE software to communicate with digital, analog or I2C sensors acting as a standard Arduino board. It can also be used as a USB-to-Serial Adapter to directly control a Lynxmotion Smart Servo via USB.
	11	+Lorren Ipsum
12	12
13	13	= Features =
14	14
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18	18	* Unpopulated A3 pin under the USB Type-C
19	19	* LED (red): Tx-Rx USB serial activity (Tx & Rx)
20	20	* LED (green): Power LED (PWR)
21		-* LED (RGB): Controlled by the user
22	22	* Arduino bootloader installed & Arduino IDE compatible
23	23	* Lynxmotion Smart Servo (LSS) mounting pattern
24	24	* Same form factor as the** **[[LSS - Power Hub>>doc:servo-erector-set-system.ses-electronics.ses-modules.lss-power-hub.WebHome||rel="noopener noreferrer" target="_blank"]] / [[doc:servo-erector-set-system.ses-electronics.ses-modules.lss-2io-board.WebHome]] / [[doc:servo-erector-set-system.ses-electronics.ses-modules.lss-5vr.WebHome]]
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29	29	* USB-to-Serial IC: CH340E ([[Driver Download>>https://translate.google.ca/translate?sl=auto&tl=en&u=http%3A%2F%2Fwch.cn%2Fdownloads%2FCH341SER_EXE.html]])
30	30	* Logic voltage: 5V
31	31	* Analog voltage: 5V
32		-* Logic 5V maximum current: 200mA
33		-* Analog 5V rail maximum current: 1.2A
34		-* Number of analog pins: 3
35		-* Number of digital IO pins: 3
	31	+* 5V maximum current: 200mA
	32	+* Number of analog pins: 1
36	36	* Input voltage via LSS connector: 6V-12V
37	37	* Maximum rated current through LSS connectors: 2A
38		-* Default baud rate in 2RC mode (with LSS-2IO Arduino program pre-loaded): 115200
	35	+* Default baud rate in 2MC mode (with LSS-2IO Arduino program pre-loaded): 115200
39	39
40	40	= Pinout =
41	41
	39	+|(% colspan="3" %)**External Pins & Connectors**
	40	+|(% colspan="1" rowspan="8" style="text-align:center; vertical-align:middle; width:300px" %){{lightbox image="LSS-2MC-External.png"/}}|(% style="width:35px" %)[[image:[email protected]]]|**Vin**: Input voltage supplied by LSS bus (6V to ~~12V)
	41	+|[[image:[email protected]]]|**Ground (G)**: Common ground
	42	+|[[image:[email protected]]]|**LSS Rx**
	43	+|[[image:[email protected]]]|**LSS Tx**
	44	+|[[image:[email protected]||alt="SQUARE-Red.png"]]|**H-Bridge Output #1**
	45	+|[[image:[email protected]||alt="SQUARE-Red.png"]]|**H-Bridge Output #2**
	46	+|[[image:[email protected]||alt="SQUARE-Blue.png"]]|**H-Bridge Output #3**
	47	+|[[image:[email protected]]]|**H-Bridge Output #4**
	48	+|(% colspan="3" %)**Internal Pins**
	49	+|(% colspan="1" rowspan="9" %) | |**Pin D14: **Controls the tri-state buffer (IC3) on the ATMega328P Tx serial line (pulled-down)
	50	+| |**Pin D7: **Controls the tri-state buffer (IC4) on CH340E Tx / ATMega328P Rx serial line (pulled-up)
	51	+| |**H-Bridge Input #1: **Arduino D9 pin
	52	+| |**H-Bridge Input #2:** Arduino D10 pin
	53	+| |**H-Bridge Input #3: **Arduino D3 pin
	54	+| |**H-Bridge Input #4: **Arduino D11 pin
	55	+| |**H-Bridge i2c:** SDA/A4 & SCL/A5
	56	+| |**H-Bridge NSleep:** Arduino D2 high to enable
	57	+| |**H-Bridge NFault:** Arduino D8
	58	+
	59	+
42	42	|(% colspan="3" style="width:350px" %)(((
43	43	(% class="wikigeneratedid" id="HExternalPins26Connectors" %)
44	44	**External Pins & Connectors**
45	45	)))
46		-|(% colspan="1" rowspan="8" style="vertical-align:middle; width:300px" %){{lightbox image="LSS-2MC-External.png"/}}|(% style="vertical-align:middle; width:35px" %)[[image:[email protected]]]|(% style="vertical-align:middle" %)**Vin**: Input voltage supplied by LSS bus (6V to ~~12V).
47		-|(% style="vertical-align:middle" %)[[image:[email protected]]]|(% style="vertical-align:middle" %)**Ground (G)**: Common ground.
48		-|(% style="vertical-align:middle" %)[[image:[email protected]]]|(% style="vertical-align:middle" %)**LSS Rx**
49		-|(% style="vertical-align:middle" %)[[image:[email protected]]]|(% style="vertical-align:middle" %)**LSS Tx**
50		-|(% style="vertical-align:middle" %)[[image:[email protected]||alt="SQUARE-Red.png"]]|(% style="vertical-align:middle" %)**H-Bridge Output #1**
51		-|(% style="vertical-align:middle" %)[[image:[email protected]||alt="SQUARE-Red.png"]]|(% style="vertical-align:middle" %)(((
	64	+|(% colspan="1" rowspan="8" style="vertical-align:middle; width:300px" %){{lightbox image="LSS-2MC-External.png"/}}|(% style="vertical-align:middle; width:35px" %) |(% style="vertical-align:middle" %)**Vin**: Input voltage supplied by LSS bus (6V to ~~12V).
	65	+|(% style="vertical-align:middle" %) |(% style="vertical-align:middle" %)**Ground (G)**: Common ground.
	66	+|(% style="vertical-align:middle" %) |(% style="vertical-align:middle" %)**LSS Rx**
	67	+|(% style="vertical-align:middle" %) |(% style="vertical-align:middle" %)**LSS Tx**
	68	+|(% style="vertical-align:middle" %) |(% style="vertical-align:middle" %)**H-Bridge Output #1**
	69	+|(% style="vertical-align:middle" %) |(% style="vertical-align:middle" %)(((
52	52	**H-Bridge Output #2**
53	53	)))
54		-|(% style="vertical-align:middle" %)[[image:[email protected]||alt="SQUARE-Blue.png"]]|(% style="vertical-align:middle" %)(((
	72	+|(% style="vertical-align:middle" %) |(% style="vertical-align:middle" %)(((
55	55	**H-Bridge Output #3**
56	56	)))
57		-|(% style="vertical-align:middle" %)[[image:[email protected]]]|(% style="vertical-align:middle" %)**H-Bridge Output #4**
	75	+|(% style="vertical-align:middle" %) |(% style="vertical-align:middle" %)**H-Bridge Output #4**
58	58
59	59	|(% colspan="1" rowspan="9" style="vertical-align:middle; width:300px" %) |(% style="vertical-align:middle; width:35px" %) |(% style="vertical-align:middle" %)(((
60	60	**Pin D14: **Controls the tri-state buffer (IC3) on the ATMega328P Tx serial line (pulled-down).
...	...	@@ -101,6 +101,7 @@
101	101
102	102
103	103
	122	+
104	104	= Communication Modes =
105	105
106	106	The LSS 2IO Board has three serial communication modes which are selected using the switch SW1. The board is shipped in the 2RC ("to R/C") Mode, pre-loaded with the Lss2IO Arduino program (in the [[AlternativeLSS Arduino Library>>https://github.com/Lynxmotion/AlternativeLSS/]]). The three communication modes are explained below. It is important to note that modes are often a combination of the switch position and the Arduino code running in the ATMega328P chip.
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157	157
158	158
159	159
	179	+
160	160	**Pin / ID Default Assignment**
161	161
162	162	The following pinout is used in the sample code so as to not interfere with any other guides or manuals. This pinout can be changed in the Arduino program.
...	...	@@ -186,6 +186,7 @@
186	186
187	187
188	188
	209	+
189	189	== Arduino ==
190	190
191	191	|(% style="text-align:left; width:300px" %)**Switch Position**|(% style="text-align:left" %)**Mode Information**
...	...	@@ -224,6 +224,7 @@
224	224
225	225
226	226
	248	+
227	227	{{lightbox image="LSS-2IO-Schematic-Arduino.png" width="900"/}}
228	228
229	229	== Direct (USB to Serial) ==
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260	260
261	261
262	262
	285	+
263	263	{{lightbox image="LSS-2IO-Schematic-Direct.png" width="900"/}}
264	264
265	265	= Advanced Pinout =