I have tried asking on the Networking part of the forum but have no replies.. So i will try asking it here.
I am wondering if its possible for the Arduino WiFi Shield to be able work with the Atmega328 from the Arduino Uno board by itself, like a standalone to build a project or does it require the Arduino Uno board for it to work since on https://www.arduino.cc/en/Main/ArduinoWiFiShield, it says 'Requires an Arduino board (not included)'? Thanks for helping!
It doesn't need the entire board, it works with a bare Atmega328P. But the thing is, you have to make the connections from the shield to the atmega.
mart256:
It doesn't need the entire board, it works with a bare Atmega328P. But the thing is, you have to make the connections from the shield to the atmega.
Thank you so much for the quick reply! So it can be done. Just connect the WiFi shield pin according to the Atmega Pin mapping, similar to how the WiFi shield is connected to the Arduino Uno? Are there extra instruction i will have to follow?
Delta_G:
Nope, nothing special. Just be aware that the pin numbers on the ATMega don't match the pin numbers on the board. Google Arduino Pin map and there are several out there that will show you which pins on the chip connect to which pins on the board. And make sure you are powering it right.
I actually have my circuit built on a breadboard and the program done and loaded into the Atmega, however the WiFi shield doesn't seems to be working, with no led on the side turned on.. Just to be sure, do i connect the power supply to 5V on the WiFi Shield or the Vin on the WiFi Shield? Thanks!
The page you linked to in post#0 has a schematic.pdf
The connectors are shown on the right hand side.
As far as I can see, both 5volt and Vin are used.
Vin/VCC/RAW is used to make 3.3volt with a buck converter (IC8).
I suppose that buck converter would also be happy with 5volt.
Leo..
Wawa:
As far as I can see, both 5volt and Vin are used.
The schematic is a bit intimidating to look at.. But does that mean i have to connect the power supply to both 5V and Vin? Because i tried connecting the power supply(5V) to either 5V or Vin and it doesn't work either way. I really don't know what is wrong but i am confident that my circuit connection is correct but its hard to tell whether if my WiFi Shield isn't working correctly or there's something wrong with the Atmega.. Any suggestion though?
Just to be sure, since i am using a breadboard, am i required to connect the shield's IOREF pin to 3.3V as said on the 'Using the Shield With Older Boards' section on the link posted in post#0
Dangerous to wire a shield to a breadboarded Arduino if you can't read/understand the schematic diagram.
Most of the WiFi shield runs on 3.3volt, made with an onboard buck converter.
From anything between 5 and 12volt (Vin/RAW pin).
The shield also uses regulated 5volt (5volt pin) for one chip, the 74LVC1G125.
I don't know how you power the breadboarded Arduino.
Not sure if IOREF is needed.
Leo..
Well I am not using the Arduino board if that's what u meant? Just a normal breadboard with the wifi shield and Atmega on it. So i am a bit confused to this as i am quite new to this...
Buy a $5 Funduino, and plug the shield on top.
Experiment when you know what you're doing.
Leo..
Wawa:
Buy a $5 Funduino, and plug the shield on top.
Experiment when you know what you're doing.
Leo..
I'd take this advice. If you cannot understand those schematic you better buy a cheap board.
Thank you both, however i will not be able to buy another board of any sort. So i will just try out on the Arduino Uno board. I am actually a student doing a project and resources in school are quite limited i would say.
hi. Did you manage to successfully connect the wi fi shield to the atmega328p? If so, how ?