ardupilot/libraries/AP_Scripting/examples/i2c_scan.lua

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2021-03-03 03:42:10 -04:00
-- This script scans for devices on the i2c bus
local address = 0
local found = 0
local i2c_bus = i2c:get_device(0,0)
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i2c_bus:set_retries(10)
function update() -- this is the loop which periodically runs
i2c_bus:set_address(address)
if i2c_bus:read_registers(0) then
gcs:send_text(0, "Found I2C at " .. tostring(address))
found = found + 1
end
address = address + 1
if address == 127 then
address = 0
gcs:send_text(0, "Found " .. tostring(found) .. " devices")
found = 0
end
return update, 100 -- reschedules the loop
end
return update() -- run immediately before starting to reschedule