Gender
Male
About
Location
essex
About Me:
electronics enthusiast
Please tell us a bit about your UAV interest
interested in gps and 6 axis gyro/ imu kalman filtering
Hometown:
colchester
Activity Feed
"Hi, Its kind of you to call me an expert!
Anyway I have a lot of experience with RTK running under RTKlib with ublox and GPS+Glonass receivers which I can supply at very attractive prices due to my bulk buying.
I can try to help you but its…"
Anyway I have a lot of experience with RTK running under RTKlib with ublox and GPS+Glonass receivers which I can supply at very attractive prices due to my bulk buying.
I can try to help you but its…"
"I know you have got this working now, but for the benefit of other readers, it looks like you didn't put in a valid base station position.
IMHO the Lea 6T engine is an overkill for RTK work, mainly designed for low signal multipath reception in…"
IMHO the Lea 6T engine is an overkill for RTK work, mainly designed for low signal multipath reception in…"
"Hi,
I can supply the Lea-4T boards at £50GBP with logic level serial inputs,
or modified for usb input at £75GBP plus p&p
email arwooldridge@o2.co.uk if interested.
I can also supply helical antennae and cable to work with the above.
Regards
Anthony"
I can supply the Lea-4T boards at £50GBP with logic level serial inputs,
or modified for usb input at £75GBP plus p&p
email arwooldridge@o2.co.uk if interested.
I can also supply helical antennae and cable to work with the above.
Regards
Anthony"
"Hi,
I cannot divulge the drawings for our choke ring as they are commercial.
If you Google though you will find a document that has drawings of all the top GPS firms Choke rings.
Note that most of these are dual frequency so you can scale down the…"
I cannot divulge the drawings for our choke ring as they are commercial.
If you Google though you will find a document that has drawings of all the top GPS firms Choke rings.
Note that most of these are dual frequency so you can scale down the…"
"Yes I still have Lea-4T boards.I have pinouts, and full user documentation is available from ublox.Standard board is serial logic level output plus timing pulse output.The standard board is not modified for usb input but you can modify it.Takes some…"
"sorry forgot my email
arwooldridge@o2.co.uk"
arwooldridge@o2.co.uk"
"Hi Lawrence,
It could be tricky as it could conflict with my interest in supplying RTK to agriculture.
I have an RTK solution for agriculture including autosteer and GPS logging.
We could perhaps persue the matter further though.
What is you…"
It could be tricky as it could conflict with my interest in supplying RTK to agriculture.
I have an RTK solution for agriculture including autosteer and GPS logging.
We could perhaps persue the matter further though.
What is you…"
"Hi,
I have a batch of LEA-4T chips on a small very professional developement board, I think its the same one as used in Ubloxes developement kit but now superceded by their LEA 5 and 6 units.
I can supply them at £50 (GBP) each plus P&P
They are…"
I have a batch of LEA-4T chips on a small very professional developement board, I think its the same one as used in Ubloxes developement kit but now superceded by their LEA 5 and 6 units.
I can supply them at £50 (GBP) each plus P&P
They are…"
"Hi,
pinout is:
PIN 1 antenna power input.2 serial TXD1 logic level 3v3 serial RXD1 logic level 3v4 No connection, but there is circuitry no components fitted connected to the reset pin.5 0 volts supply6 Timing output 7 …"
pinout is:
PIN 1 antenna power input.2 serial TXD1 logic level 3v3 serial RXD1 logic level 3v4 No connection, but there is circuitry no components fitted connected to the reset pin.5 0 volts supply6 Timing output 7 …"
"Hi,
I bought a batch of these for my own purposes but can release some.
£50 GBP each as they are or £75 modified to run and power from usb port.
They are almost certainly the circuit board used in the evaluation kit but I can't say for sure.
In any…"
I bought a batch of these for my own purposes but can release some.
£50 GBP each as they are or £75 modified to run and power from usb port.
They are almost certainly the circuit board used in the evaluation kit but I can't say for sure.
In any…"
"I have reverse engineered this board.
No need to take the unit off the board its a good useable board as it stands for serial i/o logic levels.
I have a fairly simple modification that will convert it to usb operation powered from usb.
A few track…"
No need to take the unit off the board its a good useable board as it stands for serial i/o logic levels.
I have a fairly simple modification that will convert it to usb operation powered from usb.
A few track…"
"Yes I have several,
I do need most for my own use but can release small quantities at cost price of £50 GB Pounds plus post and packing. This is less than the cost of the chip alone.
They have logic level serial interface but can be modified to use…"
I do need most for my own use but can release small quantities at cost price of £50 GB Pounds plus post and packing. This is less than the cost of the chip alone.
They have logic level serial interface but can be modified to use…"
"Hi,
The units are used but in good working order and as new condition. I have tested many and they all work well on RTKlib.
If you give me your email address I can send a photo, with reverse engineered circuit diagram.
There is a pin header 8 pin (2…"
The units are used but in good working order and as new condition. I have tested many and they all work well on RTKlib.
If you give me your email address I can send a photo, with reverse engineered circuit diagram.
There is a pin header 8 pin (2…"
"Hi,
I have several LEA-4T pcb modules fully populated.
They are £50GBP each with just serial i/o logic levels,
or if you need them modified to run off usb port that would be 75GBP each.
All plus postage.
Its an extremely good price as the chips…"
I have several LEA-4T pcb modules fully populated.
They are £50GBP each with just serial i/o logic levels,
or if you need them modified to run off usb port that would be 75GBP each.
All plus postage.
Its an extremely good price as the chips…"
"The two LEA 4T setup should work.
The uC between the base and PC may be redundant as the LEA 4T has usb outputs.
The uC between rover and RF modem may be redundant too as the LEA 4T has serial outputs too.(might need RS232 level convertor)
The LEA…"
The uC between the base and PC may be redundant as the LEA 4T has usb outputs.
The uC between rover and RF modem may be redundant too as the LEA 4T has serial outputs too.(might need RS232 level convertor)
The LEA…"
"The mkl bug showed up as a crash in rtknavi.exe when kinematic mode was invoked, with
"illegal instruction at offset 001d59c7 in mkl-p4p.dll" under details in microsoft popup.
Tomoji sent me a rtknavi_nomkl.exe patch which completely cured the…"
"illegal instruction at offset 001d59c7 in mkl-p4p.dll" under details in microsoft popup.
Tomoji sent me a rtknavi_nomkl.exe patch which completely cured the…"
