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by Hove
Mon Apr 17, 2017 7:12 pm
Forum: Troubleshooting
Topic: Unable to start HOSTAPD on Pi Zero W
Replies: 3
Views: 3883

Re: Unable to start HOSTAPD on Pi Zero W

Don't worry, it was a surprise to me recently too - until then, I'd been custom compiling a realtek hostapd and driver, but sometime recently that just stopped being necessary. Glad to be of service!
by Hove
Sat Apr 15, 2017 6:44 am
Forum: Troubleshooting
Topic: Unable to start HOSTAPD on Pi Zero W
Replies: 3
Views: 3883

Re: Unable to start HOSTAPD on Pi Zero W

Have you tried the standard nl80211 driver? My Pi0W WAP works perfectly with this.
by Hove
Thu Apr 06, 2017 8:15 am
Forum: Networking and servers
Topic: Add U.RF WiFi antenna connection on Zero-W?
Replies: 4
Views: 1003

Add U.RF WiFi antenna connection on Zero-W?

From this link https://www.dorkbotpdx.org/blog/wramsdell/external_antenna_modifications_for_the_raspberry_pi_3 , it's possible to add a U.RF cable to attach an external antenna to the inbuilt WiFi chip. For the Zero-W, it seems there's a set of pads next to the WiFi chip to do the same. Has anyone d...
by Hove
Mon Apr 03, 2017 6:57 am
Forum: Troubleshooting
Topic: PI A+ Wifi
Replies: 2
Views: 657

Re: PI A+ Wifi

I do use TP-link RealTek WiFi dongle on my 3B, so it does work. In fact it now works using the nl80211 driver - previously it had to use a specific rtl driver especially is you want to set up a WAP. So perhaps that's the problem? FYI, the reason I'm using a WiFi dongle on one of my 3B is because the...
by Hove
Sat Apr 01, 2017 7:30 am
Forum: Beginners
Topic: Lidar Lite V3 - Raspberry Pi - Python
Replies: 32
Views: 16899

Re: Lidar Lite V3 - Raspberry Pi - Python

Here's mine: #################################################################################################### # # Garmin LIDAR-Lite V3 range finder # #################################################################################################### class GLL: i2c = None __GLL_ACQ_COMMAND = 0x0...
by Hove
Wed Mar 29, 2017 7:27 am
Forum: Automation, sensing and robotics
Topic: Raspberry pi 2 and Lidar lite v3
Replies: 6
Views: 3651

Re: Raspberry pi 2 and Lidar lite v3

Slightly off topic, but I have the LiDAR-lite V3 working with Python over I2C if this helps in any way: #################################################################################################### # # Garmin LIDAR-Lite V3 range finder # #######################################################...
by Hove
Tue Mar 28, 2017 5:31 pm
Forum: Python
Topic: Python cwiid bluetooth Wii controller problem
Replies: 4
Views: 1949

Re: Python cwiid bluetooth Wii controller problem

I did; it wasn't a problem with the code or cwiid. It worked when I used an official Nintendo Wii but not with cheap ones from e-bay. Others do have it working with non-nintendo Wii controller so I don't know what the problem actually was. Once it worked with the official Nintendo Wii, I stopped inv...
by Hove
Mon Mar 27, 2017 7:35 am
Forum: HATs and other add-ons
Topic: Pi Zero W Wirless Keyboard & Mouse
Replies: 4
Views: 9210

Re: Pi Zero W Wirless Keyboard & Mouse

Answering the original OP question: I use a bluetooth keyboard and mouse on my B3, so there is absolutely not reason why this won't work on you Pi0W, freeing up the USB port for other use. BUT, unfortunately, there's a bug in one of the drivers which means it's internal WiFi or Bluetooth but not bot...
by Hove
Fri Mar 24, 2017 9:10 am
Forum: General discussion
Topic: How to fly a quadcopter?
Replies: 10
Views: 2995

Re: How to fly a quadcopter?

This looks like fun, quads are so old now http://diydrones.com/group/apmusergroup/forum/topics/new-flight-mode-vtol-flying-wing-with-two-motors-apm-2-5 Like the look, but testing in the back-garden - way too many stone walls for a plane to crash into! At least the hardest part for a quad is take-of...
by Hove
Fri Mar 24, 2017 6:50 am
Forum: General discussion
Topic: How to fly a quadcopter?
Replies: 10
Views: 2995

Re: How to fly a quadcopter?

Hove, Hand tuned code for quads? I imagine lots of crashes in the early days, ouch. An expensive ouch, yes! Didn't hurt myself, but a lot of terminal crashes. It was a steep learning curve financially! I'm doing a temperature controller now. Standard is to use a PID loop, yuk that needs maths. So I...
by Hove
Thu Mar 23, 2017 6:57 am
Forum: General discussion
Topic: How to fly a quadcopter?
Replies: 10
Views: 2995

Re: How to fly a quadcopter?

And yes Hove is one of the few crazies trying to do it by Pi's. I have never had much luck with reliable i2c sensors reading, no idea how Hove does it. On Raspbian and with Python :o :lol: Quaterions and Kalman are the google words to look for. Really serious maths :roll: I'm not sure how, but so f...
by Hove
Tue Mar 21, 2017 6:04 pm
Forum: General discussion
Topic: How to fly a quadcopter?
Replies: 10
Views: 2995

Re: How to fly a quadcopter?

It's great that you've got the PWM / ESCs / props working together, but there's a lot more needed even just for stable climb, hover & descent. A quadcopter is inherently unstable. The flight controller has lots of sensors measuring what the quad is doing, compares these to what it should be doing ac...
by Hove
Wed Mar 08, 2017 6:52 am
Forum: Networking and servers
Topic: Does Zero-W inbuilt WiFi support WAP / soft AP? [YES]
Replies: 8
Views: 3805

Re: Does Zero-W inbuilt WiFi support WAP / soft AP? [YES]

Sorry, I don't know if there's a way to switch modes dynamically. I only ever do that by making temporary changes to the WAP config (5 different file changes) and then rebooting.

Hove
by Hove
Sat Mar 04, 2017 6:50 am
Forum: Networking and servers
Topic: Does Zero-W inbuilt WiFi support WAP / soft AP? [YES]
Replies: 8
Views: 3805

Re: [YES] Does Zero-W inbuilt WiFi support WAP / soft AP?

Here's my hostapd.conf:

Code: Select all

interface=wlan0
driver=nl80211
ssid=WAPPi
channel=1
wmm_enabled=0
wpa=1
wpa_passphrase=WAP3.141592654
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
auth_algs=1
macaddr_acl=0
by Hove
Fri Mar 03, 2017 8:44 am
Forum: Networking and servers
Topic: Does Zero-W inbuilt WiFi support WAP / soft AP? [YES]
Replies: 8
Views: 3805

Re: [YES] Does Zero-W inbuilt WiFi support WAP / soft AP?

Although my update/dist-upgrade failed yesterday causing a kernel crash, a fresh install from scratch today of everything I needed now works. So yes, the Zero-W inbuilt WiFi chip does support WAP / soft-AP.
by Hove
Thu Mar 02, 2017 4:48 pm
Forum: Networking and servers
Topic: Does Zero-W inbuilt WiFi support WAP / soft AP? [YES]
Replies: 8
Views: 3805

Does Zero-W inbuilt WiFi support WAP / soft AP? [YES]

My Zero 1.3 + dongle WAPs happily with default hostapd. I did a full update/dist-upgrade this morning, plugged it into my Zero-W, and the kernel crashed somewhere during "Plymouth" processing. No logs in syslog / kern.log (unsurprisingly). Note WAPping is just a guess. Transferring the SD card back ...
by Hove
Sat Feb 25, 2017 9:04 pm
Forum: Off topic discussion
Topic: Old School Fault Finding
Replies: 44
Views: 6394

Re: Old School Fault Finding

I love the smell of germanium in the morning!
by Hove
Sat Feb 25, 2017 6:39 pm
Forum: HATs and other add-ons
Topic: [WORKAROUND] B3 WiFi or Bluetooth but not both
Replies: 7
Views: 4616

Re: B3 WiFi or Bluetooth but not both

Just for the record, I've opted to disable the internal WiFi and use one of the edimax nano dongles. Instructions here https://www.raspberrypi.org/forums/viewtopic.php?p=920016#p920016 /etc/modprobe.d/raspi-blacklist.conf #wifi blacklist brcmfmac blacklist brcmutil #bt # blacklist btbcm # blacklist ...
by Hove
Sat Feb 25, 2017 3:48 pm
Forum: HATs and other add-ons
Topic: [WORKAROUND] B3 WiFi or Bluetooth but not both
Replies: 7
Views: 4616

Re: B3 WiFi or Bluetooth but not both

It's a known problem with the bluetooth / wifi chip that's being investigated by the producers - read higher up this post to see the link.
by Hove
Sat Feb 25, 2017 2:39 pm
Forum: HATs and other add-ons
Topic: [WORKAROUND] B3 WiFi or Bluetooth but not both
Replies: 7
Views: 4616

Re: B3 WiFi or Bluetooth but not both

The keyboard is K810, mouse is the ultrathin. This is using the inbuilt WiFi and Bluetooth. For me, the bluetooth connection is so unreliable, it's not possible to type a sentence - it disconnects every few seconds. With WiFi turned off completely, then the bluetooth keyboard and mouse work perfectl...
by Hove
Mon Feb 20, 2017 3:33 pm
Forum: HATs and other add-ons
Topic: [WORKAROUND] B3 WiFi or Bluetooth but not both
Replies: 7
Views: 4616

Re: B3 WiFi or Bluetooth but not both

Thanks - sorry for not searching the forum hard-enough beforehand.
by Hove
Mon Feb 20, 2017 8:03 am
Forum: HATs and other add-ons
Topic: [WORKAROUND] B3 WiFi or Bluetooth but not both
Replies: 7
Views: 4616

[WORKAROUND] B3 WiFi or Bluetooth but not both

Using the built in antenna for WiFi and Bluetooth, with WiFi enabled, my keyboard / mouse bluetooth connections drop out every few seconds. With WiFi disabled, they work perfectly, permanently. Both are Logitech high quality.. Has anyone seen this, and if so, has anyone found a solution?
by Hove
Sat Feb 18, 2017 2:28 pm
Forum: Automation, sensing and robotics
Topic: Laser rangefinder
Replies: 13
Views: 9638

Re: Laser rangefinder

If you want a Laser range finder rather than ultrasonic, the market is small and expensive. I've tried 3 - from best to worst: Garmin LiDAR-Lite V3 - I2C or PWM output with range up to 40m Leddar One - LED rather than laser - worked OK, but used serial UART modbus and I was looking ideally for I2C f...
by Hove
Mon Feb 06, 2017 7:03 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Hijack I2C-0 or add I2C-2?
Replies: 0
Views: 395

Hijack I2C-0 or add I2C-2?

Are either of the above possible? I2C 1 runs an MPU-9250 IMU. It should also run a Garmin LiDAR-Lite, and certainly on one of my Quads it does perfectly, but on the other, if the LiDAR is connected, the IMU I2C throws an I/O error after a while. Unplug the LiDAR and the IMU works perfectly. The IMU ...

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