examples/modem-check/modem-check.toml

pyrtan / sourcev0.13.0 · main

1	# Whether a modem on a serial line answers AT. A serial node opens a device
2	# at a baud rate, writes, and reads until a terminator or the timeout;
3	# `devices` is the allow-list. An observe retries once on no answer.
4
5	name = "modem-check"
6	version = 2
7	namespace = "pyrtan"
8	description = "Whether a modem on a serial line answers AT."
9	tags = ["hardware", "serial"]
10	license = "MIT"
11	devices = ["/dev/ttyUSB", "/dev/ttyACM"]
12	start = "at"
13
14	[[triggers]]
15	pattern = "is the modem up"
16	[[triggers]]
17	pattern = "is the modem on {device:word} up"
18
19	[inputs.device]
20	type = "str"
21	default = "/dev/ttyUSB0"
22
23	[nodes.at]
24	kind = "observe"
25	serial = { device = "{{ inputs.device }}", baud = 9600, write = "AT\r\n", read_until = "\n" }
26	into = "s" # state.s = { device, baud, sent, body, bytes, complete, json, lines }
27	timeout = 3
28	retries = 1
29	extract = [{ into = "answer", regex = "(OK\|ERROR)" }]
30	next = "answered"
31
32	[nodes.answered]
33	kind = "decide"
34	on = "answer"
35	branches = [
36	{ when = { eq = "OK" }, then = "yes" },
37	{ when = { eq = "ERROR" }, then = "error" },
38	{ else = "odd" },
39	]
40
41	[nodes.yes]
42	kind = "done"
43	say = "The modem on {{ inputs.device }} is there."
44	output = { device = "{{ inputs.device }}" }
45
46	[nodes.error]
47	kind = "fail"
48	reason = "modem-error"
49	say = "The modem on {{ inputs.device }} answered ERROR."
50
51	[nodes.odd]
52	kind = "fail"
53	reason = "odd-answer"
54	say = "{{ inputs.device }} answered {{ state.s.body \| strip }} to AT."