DennisSc
commented
9 years ago Hello Allan,
I only have one ds18b20 sensor to test, so you’ll have to try this at own:
- Add to ds18b20.lua:
function addrs2() setup(pin) tbl = {}
ow.reset_search(pin) count = 0 repeat count = count + 1 addr = ow.search(pin) table.insert(tbl, addr) tmr.wdclr() until((addr ~= nil) or (count > 100)) ow.reset_search(pin)
return tbl end
- Change iot.lua, replace from beginning of the following lines to the end, with this:
t=require("ds18b20") t.setup(owpin)
addrs=t.addrs2() --get table of 1-wire sensor addresses
if (addrs ~= nil) then print("Total DS18B20 sensors: "..table.getn(addrs)) for index,value in pairs(addrs) do print("address: "..value) temperature1 = t.read(addrs[index]) --get temperature of first sensor print(temperature1) sendStatus(temperature1) end end
t = nil ds18b20 = nil package.loaded["ds18b20"]=nil
conn = nil
Node.compile() both “ds18b20.lua” and “iot.lua”, and reboot node. Check the console output to see if the two(or more) sensors are read correctly. Of course, as of now this will only update all sensor values to the same virtual easyIoT node, but you can easily change the sendStatus function to use more nodes, once you are sure the multi sensor reading works ok.
Please report back once you get around to testing it, thanks.
Dennis
Von: Allan Madsen [mailto:notifications@github.com] Gesendet: Sonntag, 17. Mai 2015 20:11 An: DennisSc/easyIoT-nodeMCU Betreff: [easyIoT-nodeMCU] More ds18b20 (#1)
What would you do if there would be more DS18B20 each with their own node N1S1, N1S2 etc.
— Reply to this email directly or view it on GitHubhttps://github.com/DennisSc/easyIoT-nodeMCU/issues/1.
What would you do if there would be more DS18B20 each with their own node N1S1, N1S2 etc.