Im using arduino 1.0 IDE and maniacbug-RF24-53cb579.zip (12/11/11) for the radios library.
Arduino mega2560 full#
What possible reason would you have for slowing down the clock? The refresh rate is going to consume a considerable amount of processor time to begin with, if you have any plans to add code outside of the display itself then the clock needs to run at full speed. Im having troubles getting a MEGA2560 (not r3) to connect with a NANO v3 using the rf24L01+ radio. Why two arrays to hold the numbers being displayed? #ifdef SLOW_CLOCK Define arrays to hold the numbers to display on digits 1 to 10 and digits 11 to 20 The Mega is 100 compatible with Arduino IDE and most shields designed for the Arduino mega2560 r3RoHS Compliant.
Arduino mega2560 serial#
Serial comm options on Arduino (s) ESP8266 and Arduino needs 2 serial comms either 1 hardware 1 software or 2 hardware serial. Be sure to score a line to separate the copper strips from shorting the adjacent pins. That would require transistors to handle the current of 20 segments lit simultaneously. This is made of a 4x4 veroboard, PCB headers, and jumper header. I expect someone there will point out that with this many digits, it might be better to multiplex the segments instead of the digits, that way the refresh rate would be 50Hz x 7 = 350 instead of 50Hz x 20 = 1000. It'll be interesting to compare the responses. This topic has now appeared on StackExchange:
Display the number on the seven segment display Determine the array index based on the current digitĬhoose_digit((i <= 10) ? numbers1to10 : numbers11to20) Define arrays to hold the numbers to display on digits 1 to 10 and digits 11 to 20ĬLKPR = _BV(CLKPCE) // enable change of the clock prescalerĬLKPR = _BV(CLKPS0) // divide frequency by 2 My problem right it is displaying incorrect numbers. I want it to display 0-9 in digit1 to digit10 and 0-9 in digit11 to digit20. In addition I'm multiplexing 20 7-segment LEDs. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16. I'm using Arduino Mega 2560 to light up 20 7-segment LEDs. The Arduino Mega 2560 is a microcontroller board based on the ATmega2560.
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