I'm starting using Arduino, pardon me if I say something wrong! =)
Everything seems very confusing to me, but I'm trying my best!
So, here is the problem:
I want to connect an Arduino to a wireless network of a lab, using 802.15.4
So, my best option, as my teacher said, is Microchip MRF24J40MA.
Using SPI, how can I connect both?
I already found the MISO, MOSI, SS and SCK in Arduino.
Arduino Mega users – MISO is 50, MOSI is 51, SCK is 52 and SS is usually 53
With that, I would connect directly, but the voltage in Arduino ports (5 Volts) is different from the Microchip (3.3V).
Are there any shield available, so I would avoid having the work to create one?
Also, I'm trying to create a connection betweek them, but i'm still unsure about the connection.
MRF24J40MA(3.3V) - arduino (5v)
GND - GND
VIN - 3.3V
CS (IN) - SS (OUT) - REDUCE 5v->3.3v
SDI - MOSI (OUT) - REDUCE 5v->3.3v
SDO - MISO (IN) - DIRETO
SCK - SCK (OUT) - REDUCE 5v->3.3v
RESET - NO CONNECTION
WAKE - NO CONNECTION
INT - PINO 3 (IN) - DIRETO
Also, can I use a resistor divider to get 3.3 Volts on the chip, like this?http://www.sparkfun.com/tutorials/65
Thanks in advance!