R/C with arduino & NRF24L01+ 2.4GHz Antenna Wireless Transceiver Module

kariloy · July 20, 2012, 1:22pm

October, 11th 2012Well, my prototype remote controller is nearly finished now.Bellow you can see the ON/OFF switch placement (that’s for you Hoff).The backside of the board after a hand of nail polish (yeah, I know, yet another archaic method). Also notice the little blue jumper wire that I ha

This is a companion discussion topic for the original entry at https://community.robotshop.com/blog/show/r-c-with-arduino-nrf24l01-2-4ghz-antenna-wireless-transceiver-module

birdmun · September 21, 2012, 9:32pm

**One thing you could do to get a number of buttons on a single **

line is, use an analog line, switches, and resistors like they suggest here.

kariloy · September 22, 2012, 12:22pm

Posts for my own future reference – Bookmarks

LCD parallel --> I2C

http://www.spikenzielabs.com/SpikenzieLabs/I2C-SPI_LCD.html

http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en023499

http://blog.littlebirdelectronics.com/arduino-i2c-mcp-23017-lcd-interface

http://embedded-lab.com/blog/?p=30&mid=523

http://garagelab.com/profiles/blogs/tutorial-lcd-using-only-2-arduino-pins-with-pcf8574-and-i2c

http://www.akafugu.jp/posts/products/twilcd/

birdmun · September 22, 2012, 9:34pm

You might want to look at patrickmccabe’s LCD backpack.

https://www.robotshop.com/letsmakerobots/node/27547

kariloy · September 23, 2012, 6:31am

I did

Yup, I did alas either I got it wrong or the LCD there is still working on parallel mode and hence pin-hogging

birdmun · September 23, 2012, 7:15am

The ezLCDuino

is an arduino bootloaded AVR that then allows different forms of serial communication with the LCD.

Also, the embedded labs link you have is all good and well, as long as you have room for extra code. There is even a way to trim it down to 2 pins with the use of a NOT gate to feed the Enable line on the LCD.

kariloy · September 23, 2012, 7:59am

I’m guessing that then, that

I’m guessing that then, that AVR would be exclusively used as a “sort of interface”, if I would need another mcu unless I did not need a lot of space/pins.

The embbed labs one was my favourite, but I got confused by the PIC part and then seeing seemingly arduino code… I even have 595 in stock… about gates, I guess I’ll have to study up on that because it still belongs to the realm of electronic magic

However I then found the garagelabs link… it seems simple enough, 2-wires and the chip that it uses I think I can buy locally (and cheaply of the interwebs), I even “transcribed” the schematics to a eagle file.

Regardless I haven’t looked at any in much depth, and that’s one of the reason it is a “collection of bookmarks”