blob: a0567596916c0e4f1d98c2c9201405cdb49fa734 (
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local device = _G
local RD_GAS = string.char(0x01)
local char000 = string.char(0,0,0)
api={}
api.get_gas = {}
api.get_gas.parameters = {} --no parameter
api.get_gas.returns = {[1]={rname="gas level", rtype="number"}} --one return
api.get_gas.call = function ()
local get_payload = RD_GAS
device:send(get_payload)
local response = device:read(3)
if not response then
print ('WARN: api.get_gas.call failure on device:read(3)')
response=char000
end
local raw_val = string.byte(response, 2) + 255*string.byte(response, 3)
return raw_val
end
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