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Read temperature with Thermistor on imp001, show on small agent webpage
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| // agent code: | |
| body <- "No value yet"; | |
| http.onrequest(function(request,res){ | |
| local html = @"<html><meta http-equiv=""refresh"" content=""5""> | |
| <body>" + body + "</body></html>"; | |
| res.send(200,html); | |
| }); | |
| device.on("temp", function(t){ | |
| body = format("Temperature: %0.1f C", t ); | |
| }); |
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| temp_enable <- hardware.pin2; | |
| temp_enable.configure(DIGITAL_OUT); | |
| temp_enable.write(1); | |
| temp_pin <- hardware.pin5; | |
| temp_pin.configure(ANALOG_IN); | |
| function read_temperature() { | |
| local vdda = hardware.voltage(); | |
| local v_therm = temp_pin.read() * (vdda / 65535.0); | |
| return (298.15 * 3380.0) / | |
| (3380.0 - 298.15 * math.log(10000.0 / ((vdda - v_therm) * | |
| (10000.0 / v_therm)))) - 273.15; | |
| } | |
| function loop(){ | |
| local t = read_temperature(); | |
| server.log(format("Temperature: %0.1f°C", t )); | |
| agent.send("temp",t); | |
| imp.wakeup(1, loop); | |
| } | |
| loop(); |
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