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61  Using Arduino / Programming Questions / Re: Inversing a character on a Nokia 5110 display on: September 26, 2014, 08:30:41 am
Quote
ut I don't understand what he ment when he said "negated the bits from the lookup table"
The character will be defined somewhere as a number of bytes in a lookup table.
If you find this and perform the BITNOT operation (symbol ~) on each value, you'll get what you want.
62  Using Arduino / Storage / Re: EEPROM **Hardware Level** programming ( 2560 Mega) on: September 26, 2014, 02:39:05 am
It seems to me there are 4 instructions between the two (st)ore instuctions:  ldr, ldr, ld, ori...   I myself do not know how to interpret assembly language.  So if you don't mind me asking?  What is the significance of these in-between instructions?  And how do we know how long these instructions are taking in cycles.  I tried looking for it on the 2560 ATmel manual but no look so far.  I digress and will continue to search though..
http://www.atmel.com/Images/Atmel-2549-8-bit-AVR-Microcontroller-ATmega640-1280-1281-2560-2561_datasheet.pdf
Instruction set summary, page 404
63  Using Arduino / Audio / Re: How to add and average 4 audio signals with arduino? on: September 26, 2014, 02:02:22 am
Are you sure this is the right device for your application?
Remember the Uno has only one ADC.
64  Using Arduino / Programming Questions / Re: Trying to display temperature on a TFT on: September 26, 2014, 01:41:56 am
Code:
String yo = String('DHT11.getFahrenheit()');
You're really not paying attention.
65  Community / Website and Forum / Re: Slight error found in BlinkWithoutDelay tutorial on: September 26, 2014, 12:40:11 am
There is an error in this line
Code:
if(currentMillis - previousMillis > interval)
, but it is that the comparison should be ">=".
66  Using Arduino / Programming Questions / Re: Trying to display temperature on a TFT on: September 25, 2014, 04:45:42 pm
Code:
String yo = String('DHT11.getFahrenheit(), 2');
I thought we'd covered this.
67  Using Arduino / Programming Questions / Re: Trying to display temperature on a TFT on: September 25, 2014, 04:31:51 pm
Maybe it's a bit warm where you are.
I do Kelvin or Celsius, but have no concept of Fahrenheit.

Or, you could post your code.
68  Using Arduino / Programming Questions / Re: Another pair of eyes needed on: September 25, 2014, 04:29:52 pm
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Even so, I think there's something about what you said.  All the values I used during testing were less than 32767.  An unsigned long in this environment is 32 bits, which far exceeds those values, but there is something suspicious going on here. I just wish I knew what it is.
The "it" is 16 bit signed arithmetic.
69  Using Arduino / Programming Questions / Re: Trying to display temperature on a TFT on: September 25, 2014, 04:24:14 pm
Code:
Serial.println(DHT11.getFahrenheit());
70  Using Arduino / Programming Questions / Re: Trying to display temperature on a TFT on: September 25, 2014, 04:19:42 pm
Quote
^this gives me the error no matching function for call to 'HardwareSerial::println(<unresolved overloaded function type>)'
Maybe you could try calling the function
71  Using Arduino / Project Guidance / Re: Image processing autonomous robot hardware advice on: September 25, 2014, 04:05:20 pm
Where are you transmitting the image to for analysis?
How much processing power do you have available, and what latency can you accept?
72  Using Arduino / Programming Questions / Re: Trying to display temperature on a TFT on: September 25, 2014, 03:59:01 pm
Quote
Update: I've tried removing the 2 from the serial.print line and it come out with an error. I also tried deleting the 2 in the string line and I'm still just displaying the letters DHT where the temperature is supposed to be.
Please feel free to post your code
73  Using Arduino / Programming Questions / Re: Trying to display temperature on a TFT on: September 25, 2014, 03:14:58 pm
Code:
String yo = String('DHT11.getFahrenheit(), 2');
Look carefully.
74  Using Arduino / Programming Questions / Re: Sine Waves on: September 25, 2014, 02:03:54 pm
Feel free to post your code.
75  Using Arduino / Project Guidance / Re: spdif (toslink) switch on: September 25, 2014, 01:48:10 pm
Circuit?
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