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so I bought this NES controller thinking I would be dealing with a 5-pin shift register but found that it was connected to a WIImote connector that appears to use I2C.
I am trying to read its output with my raspberry pi 3 model B. Is there a library or something I could use? Any other ideas?
The wiimote controller connected via Bluetooth to the console whereas the nunchuck used I2C to connect.
If it is the nunchuck interface then the Python routines from Boeeerb on Github is a good place to start else look at the Python module pynput to handle the feed.
As for your board - I've no idea what it will output but I would go back to the supplier and ask.
All right, so a few days and a lot of reading about i2c later, I came up with a simple code to read the basic inputs of the NES controller. Thanks to Andyroo for the starting place.
For anybody interested here's the code:
import time
from smbus import SMBus
address = 0x52
class nes:
def __init__(self,delay = 0.05):
i2c_bus = 1
self.delay = delay
self.bus = SMBus(i2c_bus)
time.sleep(1)
self.bus.write_byte_data(address,0x40,0x00)
def raw(self):
time.sleep(self.delay)
data = self.bus.read_i2c_block_data(address, 0, 6)
time.sleep(self.delay)
return data
def read(self, key = 0, name = ""):
data = self.raw()
a = data[4]
b = data[5]
if a == 255 and b == 255:
key = 0
name = "none"
elif a == 255 and b == 254:
key = 1
name = "up_arrow"
elif a == 191 and b == 255:
key = 2
name = "down_arrow"
elif a == 255 and b == 253:
key = 3
name = ("left_arrow")
elif a == 127 and b == 255:
key = 4
name = ("right_arrow")
elif a == 239 and b == 255:
key = 5
name = ("select")
elif a == 251 and b == 255:
key = 6
name = ("start")
elif a == 255 and b == 191:
key = 7
name = ("b")
elif a == 255 and b == 239:
key = 8
name = ("a")
elif a == 63 and b == 252:
key = 9
name = ("full_arrow")
else:
key = 100
name = ("unregistered")
return key, name
Question
How can Rpi talk I2C to NintenDo Controllers?
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Answer
I googled but could not find any Rpi python library for I2C Wiimote. I only find the BootLin's Wii I2c spec.
The Wiimote I2C protocol is pretty standard (Appendix A). So it should be easy to
talk I2C with it.
Ref 9, 10 are DIY project to make fun with Wiimote and should be useful for the OP.
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References
(1) Game Controller - Wikipedia
(2) Nintendo controllers list - Wikipedia
(3) Nintendo Wii Remote (nunchuck) - Wikipedia
(4) Nintendo I2C Wiimote/Extension Controllers
(5) Nintendo I2C Wiimote/Extension Controllers/Classic Controller
(6) Pynput, a python library to control and monitor input devices (Sorry, No Nintendo!)
(8) AliExpress Wii Remote Catalog
(9) Do-it-yourself project to use a Wii remote controller
(10) Fun with Wiimote
(11) I2C for Wii WiiChuck Nunchuck Adapter shield Module Board for Arduino
(12) NinTenDo Wii Nunchuk I2C Interface
(13) NinTenDo NunChuk
(14) Nintendo Switch - Wikipedia
(15) Nintendo Video Game Home and Handheld (Portable) Consoles - Wikipedia
(16) Animal Crossing - Wikipedia
(17) Animal Crossing: New Horizons - Wikipedia
(18) Nintendo Entertainment System - Wikipedia
(19) Wii Remote Teardown and Analysis (ADXL330) - 2016
(20) Video Games in South Korea (Lineage II, NCsoft 2003)
(21) The Best Nintendo Switch Controllers of 2020
(22) Using a Wii Nunchuck to control Raspberry Pi Python Turtle - AdaFruit 2014jun20
(23) Using a Wii Nunchuck to control Raspberry Pi Python Turtle - Jason Barnett, TutsPlus, 2014jun13
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Appendices
Appendix A - NinTenDo Wii Nunchuk I2C Interface
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End of answer