From subsecret
Benchmark of internal time precision
Model | range of 60 sec delay() call | avg. duration of 60 sec delay() call |
---|---|---|
Arduino 101 | 59998-59999 | 59998,5625 |
Arduino Mega 2560 (clone) | 59989-59994 | 59991,75 |
Benchmark of digital sensor read
Benchmark of analog sensor read
Benchmark of pi calculation
Test programs:
Python program for measuring response time
import time import serial def millis(): return int(round(time.time() * 1000)) ser = serial.Serial('/dev/ttyACM0', 9600) while True: start = millis() data= "recv: "+ser.readline() end = millis() print (end-start) print data
Time precision benchmark
void setup() { Serial.begin(9600); } void loop() { while (true) { unsigned long start = millis(); delay(60000); unsigned elap = millis() - start; Serial.println(elap); } }