Must-haves for EASY DIY controller?

Anyone have any boards laying around?

Anyone have any boards laying around?

I'd like to finally start up a tank build and would like to also start on a hydra. Does anyone have boards available?
 
so with

Code: 
#include <I2CRelay.h>
#include <Wire.h>
#include <mcp23xx.h>

MCP23XX relayset_1 = MCP23XX(B0100000);


void setup ()
{

}

void loop ()
{
relayset_1.set(MCP_REG_GPIO, B11111111);
delay(1000);
relayset_1.set(MCP_REG_GPIO, B00000000);
delay(1000); 
}

my relays dont do anything. address pins are all set to gnd. any ideas?
 
WindowMaker said:
my relays dont do anything. address pins are all set to gnd. any ideas?
Click to expand...
From the link I suggested you read(http://www.arduino.cc/en/Reference/Wire), the very first method:
Wire.begin()

Wire.begin(address)

Description
Initiate the Wire library and join the I2C bus as a master or slave. This should normally be called only once.
Parameters
address: the 7-bit slave address (optional); if not specified, join the bus as a master.
Click to expand...
 
Have you noticed that on your hydra webpage that you never once posted the link to the website that contains the files to getting the board printed
 
Whatever you spec it when you order from the board house you use. A typical default if you don't spec a thickness might be 1.6mm (That's what the china-based "studios" use).
 
I want to make sure im reading Eagle right before i order the boards. So the board is 10cmx8.5cm and i can pick the thickness that i want the boards to be whatever i want on seedstudio
 
Just found all this a few days ago and finished reading every post from the beginning as this is something I've wanted to do with a PLC for a while now but couldn't justify the cost of a PLC just to play with. I wanted to go to the wiki as suggested to study all the info there but I.E. can't seem to load the page. I.E. says it exists but can't load it. Also what are the software requirements to open the various files for boms, brds., etc.?

Nevermind the wiki prob. I paged back to pg 62 and got on through the link there. Was able to view the BOM from there. Hopefully it is the latest ver. Still would appreciate a list of what's needed to get the boards and match the components to the proper version of everything if this is still an issue.
 
Last edited:
does any one have any extra boards they would be willing to sell i am interested in building a hydra for my tank that i am currently setting up
 
i saw his post but was hoping to find some one in the states sometimes out of country shipping can be a pain thanks i planned on sending him a pm if no one closer popped up tho
 
You must log in or register to reply here.

Similar threads

A
Aquarium Temperature Control: How I Hacked My Air Conditioner to control my tanks temperatures
Replies
6
Views
331
Naso180
N
R
DIY AI-coded ESP32 based aquarium controller
Replies
0
Views
678
ronnyking
R
E
Neptune DDR diy question for AWC
Replies
3
Views
360
Reefing102
Reefing102
J
Heater controller
2
Replies
23
Views
1K
Dustin07
D
B
Question on Mean Well 3-1 dimming
Replies
15
Views
571
bmichaelb
B
Back
Top