NRF24L01 remote project

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powering
davedarko • 11/16/2015 at 15:00 • 12 comments

https://www.pololu.com/product/2122
Since this is supposed to be portable, I want to throw in a LiPo battery, but everything runs on 3.3V. While searching for step-up/step down converters I found the pololu.com S7V8F3. I've bought one some time ago and I'll just throw it in, instead of using a booster to 5V and a 1117 to drop it down again.
Should have stayed with 5Vs, now that I'm thinking about that. Meh.
first days of fiddling
davedarko • 11/14/2015 at 23:56 • 0 comments
Three things I could rant about:
1. I forgot that the Arduino is 3.3V and 8MHz
2. the OLED displays I once bought had no reset circuit - fixed by adding a 10k resistor and 100nF cap, see: http://rayvenn.alnet.com.ua/2013/08/crius-oled-display-fix/
3. the mounting holes of the pcbs are designed off center from the joystick - fixed case with dremel

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K.C. Lee wrote 11/17/2015 at 00:30

>BT functions plus the NRF24L01 modules
I hope you are using something else for the BT connectivity. Due to hardware limitations, they can only broadcast. i.e. you can certainly see them showing up, but the nRF24 modules cannot connect as BT devices

See here: http://dmitry.gr/index.php?r=05.Projects&proj=11. Bluetooth LE fakery

As for the real BT modules from China, my impression is that you'll need something with the HID profile. The regular BT ones are only for serial port. :(

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davedarko wrote 11/17/2015 at 06:47

I've only heard of nrf24 imitating bluetooth beacons before. Plan was to throw in a classic hc05 BT module.

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davedarko wrote 11/17/2015 at 06:50

serial is fine, I want similar package structures to be send to my "robots". BT would be nice, since #R8-D8 - a distant relative of R2-D2 uses that and I could also use my phone at some point, If I find the time to get into coding android apps.

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Craig Hissett wrote 11/15/2015 at 21:47

Another awesome one Dave!

Most DIY controllers i see that have a screen are huge; Arduino Unos, big screens, loads of buttons etc.

It's really, really nice to see such a compact controller that has all of the control I'd ever need without losing the feedback screen.

Cant wait to see how this one develops!

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NRF24L01 remote project

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