dlparduino

DLP-IO8 Compatible firmware/sketch for Arduino-like boards.

Project Goal

Provide a drop-in replacement for DLP-IO8 hardware using an off-the-shelve Arduino-compatible board when you don’t need the whole DPL-IO8 hardware characteristics.

Planned features

Digital out control (high/low)
Digital in reading
Analog in reading

Features NOT planned

DS18B20 digital temperature sensor reading.
Binary protocol

Incompatibilities

Due to the Arduino hardware, not all pins have analog-to-digital converter available. Only digital in/out will be available on all pins; Analog in reading will only be available on pins internally connected to the ADC.

Current status

Nothing done, a new project just started.

Communication setup

115200 bauds, no parity, 8 bits data, 1 stop bit, no flow control

Protocol description

This is the DLP-IO8 protocol, see http://www.dlpdesign.com/usb/io8.php for the original product and related datasheet.

Channel	ASCII	Hex	Description	Return/comments
Channel 1	1	0×31	Digital out – High	Nothing
	Q	0×51	Digital out – Low	Nothing
	A	0×41	Digital in	Returns 0 or 1
	Z	0×5A	Analog in	Returns measured voltage¹
Channel 2	2	0×32	Digital out – High	Nothing
	W	0×57	Digital out – Low	Nothing
	S	0×53	Digital in	Returns 0 or 1
	X	0×58	Analog in	Returns measured voltage¹
Channel 3	3	0×33	Digital out – High	Nothing
	E	0×45	Digital out – Low	Nothing
	D	0×44	Digital in	Returns 0 or 1
	C	0×43	Analog in	Returns measured voltage¹
Channel 4	4	0×34	Digital out – High	Nothing
	R	0×52	Digital out – Low	Nothing
	F	0×46	Digital in	Returns 0 or 1
	V	0×56	Analog in	Returns measured voltage¹
Channel 5	5	0×35	Digital out – High	Nothing
	T	0×54	Digital out – Low	Nothing
	G	0×47	Digital in	Returns 0 or 1
	B	0×42	Analog in	Returns measured voltage¹
Channel 6	6	0×36	Digital out – High	Nothing
	Y	0×59	Digital out – Low	Nothing
	H	0×48	Digital in	Returns 0 or 1
	N	0×4E	Analog in	Returns measured voltage¹
Channel 7	7	0×37	Digital out – High	Nothing
	U	0×55	Digital out – Low	Nothing
	J	0×4A	Digital in	Returns 0 or 1
	M	0×4D	Analog in	Returns measured voltage¹
Channel 8	8	0×38	Digital out – High	Nothing
	I	0×49	Digital out – Low	Nothing
	K	0×4B	Digital in	Returns 0 or 1
	,	0×2C	Analog in	Returns measured voltage¹

¹ Voltage is returned as an ASCII string (e.g : 1.23).

Disclaimer

I am not afiliated with the dlpdesign company in any way; just a consumer of some of their products.
dlpdesign retain ownership of their trademarks, copyrights and other legal stuffs.

romainrossi/dlparduino