Rtl8188ftv works now. The module I used is BL-M8188FU3.
Power consumption:
rtl driver not loaded: ~0.72w
rtl driver loaded and wifi connected: ~1.03~1.1w
8 Likes
Great work!
BTW:
The USB Wlan Adapter is:
But maybe I should check out a more widely available, PI compatible USB Wlan adapter.
I compiled the kernel module for rt5370 usb adapter.
start kernel module:
insmod rt2x00lib.ko
insmod rt2800lib.ko
insmod rt2x00usb.ko
insmod rt2800usb.ko
then create wpa_supplicant.conf like this:
update_config=1
ctrl_interface=/var/run/wpa_supplicant
network={
scan_ssid=1
ssid="MyNetworkSSID"
psk="Pa55w0rd1234"
}
finally run
ip link set wlan0 up
wpa_supplicant -B -i wlan0 -c wpa_supplicant.conf
time=`wget http://time.akamai.com/?iso -O - | sed 's/T/ /' | sed 's/Z//'`
date -s "$time"
4 Likes
Thats great.
I will try it tomorrow evening. Thanks!
How are the pins/wires connected to the Lyra and the BL-M8188FU3? A diagram or list of the connections would be great. I’m sure some of us would like to use this, but we’re all not as hardware savvy and I wouldn’t know how to connect it up. Thanks!
Edit:
Actually, it looks like the picture is fine. I didn’t realize it was so high resolution and after zooming in, I could see where the pins go on the BL-M8188FU3. Still, a pin diagram might be helpful, but the picture is probably good enough. 
Is there a preferred antenna type that would work with these? Looks like many of them have an IPEX connector, but I’m just wondering if the antenna itself matters much, and if there’s a certain kind that would work best with the wifi range on this device?
(Seems like this device doesn’t support bluetooth, and is wifi only, correct?)
Is there a reason you did not take the red wire also from the connector? Is it maybe because usb is 5v and the wifi module needs 3.3?
Can you please share details of the wifi card? Which one is better - using esp32c3 wifi card or using the rtl8188ftv 3.3v usb wifi module? Both work - ready to go with your OS image?
And of course - the most important: thank you for your amazing work! I do not have the parts yet, but Picocalc, Lyra etc. will be in transit (hopefully) soon and in the meantime I am reading up and learning.
I wonder if there is some way to use the wire from the connector (presumably 5v) and safely reduce it down to 3.3v by putting something between it and the wifi moduile? Seems like it might be cleaner than soldering to the Lyra itself if the wifi module wasn’t needed later.
(Genuine question. I’m not a hardware guy, so I’m not sure if such a thing exists.)
google “5V to 3.3V Voltage Regulators & Voltage Controllers”
there are plenty of options
1 Like
Thanks! I figured such a thing (or many things!) would exist.
In other news, my Luckfox Lyra arrived. I also got the USB extender, but I guess I won’t be using it until I get one of those wireless boards and a voltage regulator/controller. I was originally planning to plug it in and use a USB wireless dongle in the PicoCalc, but since it might pull too much voltage I’d worry that I’d ruin the PicoCalc, or Lyra, or both. I’m wondering if it would be safe to even try that with the Lyra alone, just plugged via USB (and no PicoCalc in the mix at all). Wouldn’t want to fry the Lyra somehow, especially since it’s going to be increasingly difficult and expensive to get things into the US from Aliexpress in the future now that tariffs are a thing. 
nah, no worries, in a month there will be options to buy from ali via argentina with +10% costs instead of +50% tarrifs.
Does anyone know if the Luckfox Lyra in any form would be able to run SymPy? I am looking to see if I can perform symbolic math in any way with the PicoCalc.
Can you share your pico splore setup on Lyra.
3 Likes
Do you think this adapter will work
1 Like
Sorry,
does not work out for me.
on insmod i get:
insmod: can't insert 'rt2800lib.ko': unknown symbol in module, or unknown parameter
insmod: can't insert 'rt2800usb.ko': unknown symbol in module, or unknown parameter
root@luckfox:~/wifi# ip link set wlan0 up
Cannot find device "wlan0"
I get this result:
root@luckfox:~/wifi# wpa_supplicant -B -i wlan0 -c wpa_supplicant.conf
Successfully initialized wpa_supplicant
Could not read interface wlan0 flags: No such device
nl80211: Driver does not support authentication/association or connect commands
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Could not read interface wlan0 flags: No such device
wlan0: Failed to initialize driver interface
wlan0: CTRL-EVENT-DSCP-POLICY clear_all
Messages if I connect usb:
Jan 1 00:14:05 luckfox kern.info kernel: [ 846.558463] usb 1-1: USB disconnect, device number 7
Jan 1 00:14:09 luckfox kern.info kernel: [ 851.371617] usb 1-1: new high-speed USB device number 8 using dwc2
lsusb:
root@luckfox:~/wifi# lsusb
Bus 001 Device 001: ID 1d6b:0002
Bus 001 Device 007: ID 148f:5370
Thanks
michael
Hi, would you run dmesg and see which symbols are unknown