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Yes, it seems to be similar, MAX31855 is a newer version of MAX6675 (but not a drop in replacement) and they both communicate over SPI. http://playground.arduino.cc/Main/MAX6675Library here is the lib if you are interested to look at it. It's very simple, and includes examples for single and...

I'm using MAX6675 with K-type thermocouple, and I'm satisfied with it, and for my application I need only 1. I just have to say that I'm not brewing beer :( (but might consider it in the future), I am trying to make a central heating control, so all the temperatures are in the range of DS18B20...

So, we're on the same page about this, I also was thinking about a voltage divider for the flow control pin. I'm going to try this and post back. The thing that bugs me is that the webpage shows up 30 mins or so after rebooting RPi, not before.

Don't I need a level shifter when connecting flow control pin (no matter how many chips (sensors) I have), since MEGA pin8 is 5V, and RPi GPIO17 pin is 3,3V? BTW I just checked my RPi, and some strange things are going on here. After 22hrs of uptime, I can see web page "sensor/switch status"...

OK, I did as you suggested, cut down the number of chip, actions, and pids. But now I am getting some compile warnings (on lines where Serial.print(F()); is used. It says: "TeensyPi.ino:278: warning: only initialized variables can be placed into program memory area") But, sketch compiles, and...

Hi Jim! I am trying to get MEGA2560 to work with your sketch. Is there something I have to adjust, since you are using this sketch on Teensy? (eeprom addresses and such) cause only thing I get on serial monitor is Serial Debug running at 115200 baud Serial1 Debug running at 115200 baud...

I did everything you said. The result is: teensypi@teensypi /var/www/htdocs $ sudo php getCommand.php 7 Number of Arguments:2 getCommand.php 7 I don't know what is wrong here, but the web page is visible only when the teensypi_daemon is not running. I even tried a different SD card...

I'll try to get 5A power supply, but I'm guessing 2,1A should be good enough. The thing is when I kill the teensypi_daemon process, and before it respawns again, I can see web pages. Regarding hosts and hostname files; my local domain name is "jamadol.local" hostname is still "tensypi"...

I started with 1A power supply, but as you say, that's not enough. Switched to 2,1A. Still are not able to see web pages. Other ways of access are working.

Thanks for the hint on Moebius, I geather that's going to be my next step, if this doesnt work soon. Concerning /etc/hostname: teensypi@teensypi /etc $ cat hostname teensypi and /etc/hosts: teensypi@teensypi /etc $ cat hosts # RaspberryPI hosts configuration file 127.0.0.1...

I can't look at those files right now, but the page isn't loading. I use google chrome, and that pointer on the tab is just turning round'n'round. It never stops. Browser doesn't report an error. I would be satisfied with an error of any kind, but I'm not getting one. Before blaming the php...

SSH works. Files are there: drwxrwxr-x 2 teensypi www-data 4096 Apr 7 16:42 . drwxrwxr-x 9 teensypi www-data 4096 Dec 15 20:49 .. -rw-rw-r-- 1 teensypi www-data 10850 Mar 16 20:54 ActionData.php -rw-rw-r-- 1 teensypi www-data 20711 Mar 31 21:35 ActionDataWithMySQL.php -rw-rw-r-- 1...

DHCP server asigned the RPi 192.168.10.127. This is the output of nmap: zdravac@jamadol-desktop:~$ sudo nmap -v 192.168.10.127 [sudo] password for zdravac: Starting Nmap 5.21 ( http://nmap.org ) at 2013-04-23 09:08 CEST Initiating ARP Ping Scan at 09:08 Scanning 192.168.10.127 [1...

Uf, I am confused now....nothing to do with level shifters, but the thing is, I downloaded your teensypi.img and loaded it to my sd card. RPi boots, everything is ok, I dont have wifi, it is connecting via eth, I can ping it, can ssh to it, but when I try to access it via browser, nothing...

OK, .ino file compiled without errors. Going to try to upload it, but first I have to setup RPi. I have a question regarding I2C level shifter. Your is I2C safe. What does that mean, and can I use any I2C level shifter? (I have a 2-ch level shifter)

Thx I'll give it a try and report back

Hi! Im new here, following this thread for a while, and loved it! Great work! Im trying to accomplish something simmilar to your project, it's a central heating system, but the principles are the same. Now to my first question; I downloaded your TeensyPi.ino file and tried to compile it, but...