more than 6 channel ADC

Using Arduino Microcontrollers
1

Hi guys :slight_smile:

Is there any Atmel MC in a PDIP package with more than 6 ADC channels?

Asking because I need 7 and ran out of them in the 328P :grin: and SMD isn't really my thing (yet) :stuck_out_tongue:

[EDIT]
My problem is that I have to read 5 analog inputs and need an LCD to display data (currently have an I2C model) so it would use the SDA and SCL lines leaving me with just 4 analog inputs.
Only solution would be resorting to SPI communication with the LCD?

Thanks,
Pedro.

2

What about the ATMega1284P with 8 analogue pins.

3

Nice catch Riva! Thank you! :slight_smile:
It's a bit tight on RAM but it's definitely a candidate :wink:

4

Yup, 1284P, 8 analog, 2 for I2C, 2 for Serial , 20 other digital pins still available.
I offer a board with Duemilanove layout - FTDI module for USB vs 16U2, can be onboard or offboard. And other form factors also.
128K flash, 16K SRAM (twice that of a 2560), dual hardware serial ports.

http://www.crossroadsfencing.com/BobuinoRev17/

1094×458 70.8 KB

1002×582 70.8 KB

1045×620 115 KB

931×914 335 KB

5

Well, I guess the last one's not a PDIP...

6

pdoriam:
It's a bit tight on RAM but it's definitely a candidate :wink:

I have yet to delve into this particular chip but the specs look good for a DIP package device.
4x times the flash memory of an UNO
8x times the RAM
4x times the EEPROM
4x 8 bit ports

7

Riva that "bit tight on the ram side" line was me joking :grin:
I'm drooling over this chip! :stuck_out_tongue:

8

pdoriam:
Riva that "bit tight on the ram side" line was me joking :grin:

I realize that, just quoting like for like specs for other potential candidates.

pdoriam:
I'm drooling over this chip! :stuck_out_tongue:

Don't do that you will cause a short and damage it. :smiley_cat:

9

Hey Crossroads,

Gone checking your site... awesome :wink:

Those offerings seem particularly tasty :stuck_out_tongue: if only I had the need for an already assembled "kit".

The project I'm working on at the moment is a hybrid charge controller (12V-48V) up to 40A that requires inputs for:

  • Battery Voltage
  • Solar Panel Voltage
  • Turbine Voltage
  • Solar Amps
  • Battery temperature (for charge compensation)

With this chip I can now add Turbine Amps! :stuck_out_tongue:

I'll soon start a thread on the appropriate place for this project so that gurus, like you ;), can keep an eye on its sanity :grin: as well as share my progress and code :wink:

BR,
Pedro.

10

Ok, good luck. Are you making a custom PCB for it all?

11

CrossRoads:
Ok, good luck. Are you making a custom PCB for it all?

Yes I am :wink:

12

have you given a thought on muxing the pins ??
(if your data input rate is acceptable even after that little late because of muxing )

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