Tindie

I bought an item at 9 february
I have not recieved anything else yet. The truc number is UA449182959US.
Let me know how I can get it
Besty wishes

Soner Duman

Response from Pesky Products | June 21, 2021

This item was returned and marked unclaimed. Please send me an e-mail at tleracorp@gmail.com to discuss further.

Andrew | May 15, 2021

Excellent small design, useful in many applications

For VL53L1 long-range proximity sensor

I have used this sensor in multiple applications, and I think small size and weight could benefit building an array of sensors since each is low cost, low weight.

The ST ultra lite driver seems to work well for basic and advanced functionality, although I have not tried ST's full API implementation for this sensor. I believe there is a python API implementation as well, which seems to work on raspberry pi with minimal setup.

Seems to work well in various lighting conditions but I have not tested specifically.

Keep in mind this board is 3.3v voltage in, some of the other larger boards out there are 5v and have a regulator.

Rumen | March 8, 2021

Nothing Ultimate Here

A hardware without software is Nothing. This thing is a Development board, so before buying, ask yourself "Do I enjoy endless rabbit holes?". If the answer is Yes, then this IS your board. Prior to buying this thing i spent a month + trying to make MPU9250 produce accurate(!) results. There are plenty of people who would love to show you that they can make it work. This is good enough for a high school science club. Making it produce ACURATE results is a different level. Since i was using Kris' code to fight with the MPU i decided that buying the USFS is the logical next step. Mistake! The code is actually a hodge-podge of bits and pieces and it is not obvious to me that the "SOLUTION" (hardware + SOFTWARE) was ever properly tested. Kris tried to blame the poor results to improper calibration. Sure.....

So, if you are looking for a solution not sudoku challenge - you can consider Adafruit's BNO085 https://www.adafruit.com/product/4754

They have C++ and CircuitPython libraries for it. Don't know if they work because i did not use them but this is Adafruit ......

What i DID use is the MicroPython library created by Peter Hinch. https://github.com/micropython-IMU/micropython-bno055
If you are looking for plug and play - that's it.

Response from Pesky Products | March 8, 2021

Hi Rumen,

I am sorry you were not able to make the USFS work to your satisfaction.

We try hard to provide adequate documentation, see:

https://github.com/kriswiner/EM7180_SENtral_sensor_hub
https://github.com/gregtomasch/EM7180_SENtral_Calibration
https://github.com/simondlevy/USFS

We respond to customers' questions and complaints the best we can.

Most people who buy these (we have sold 1300 to date) are able to achieve the typical 2 degree rms heading accuracy with minimal fuss.

There are two essential ingredients to accurate absolute heading estimation: accurate sensors and adequate calibration. No amount of sensor fusion filtering will make up for sensors with high jitter or uncorrected offset bias or large cross-axis error, etc. In this regard, you might find that the BNO0X5 offers less than you hope.

Of course, since you are obviously unsatisfied with the USFS product, I can offer you a full refund upon request.

Kris

Peter | Oct. 16, 2020

Perfect microphone for Luftdaten DNMS project

For SPI Flash Memory Add-ons for Teensy 3.X

The Luftdaten environmental monitoring project is in the final Beta stage of including Noise pollution. For this they selected the ICS43434 microphone as it has a low background noise and good frequency characteristics. This little circuit board, after some sanding, nicely fits inside a 1/2” thin-wall tube that can be sealed with resin. A foam cap over the pipe completes the outdoor microphone unit. I have built a few now and ordered more, very pleased with them.
Documentation and Communication are NOT APPLICABLE for this rating but something had to be entered so I selected OK

Julian | July 12, 2020

perfect eval board for the BQ25504

For BQ25504 Solar Cell LiPo Charger

I am am working on a solar harvester myself and bought this board to see the BW25504 in action.
The board worked right out of the box. Great eval board to try out solar harvesting.

The only thing that could be improved is the marking on the board to show which pin is which.
The overvoltage threshold of 4.3V seems 0.1V to high for LiPo batteries?

Brad | July 11, 2020

Excellent Sensor

For MAX32660 Motion Co-Processor

I have been evaluating this sensor for use in a vehicle mounted application. I am still early in my testing but indications are that I will be able to achieve far superior results to any other comparably prices options available. Kris at pesky products has been extremely helpful with any questions I have had.

Response from Pesky Products | June 27, 2021

Happy to help Brad and I am glad you are getting good results.

Tim | July 3, 2020

Works Great

Got it in just two days via USPS. Installed it and had the code running within an hour. Now looking for 256Mbit or greater version.

Francois | April 1, 2020

Output of Quaternions in less than 15 minutes

For Ultimate Sensor Fusion Solution - LSM6DSM + LIS2MD

Hi,

Here were the steps for first try:
- unpack: 1'
- solder on top on teensy 3.6: 10'
- download and adapt sketch (add OUTPUT HIGH and LOW on 2 pins to power USFS): 3'
- upload and test: 1'

Result is perfect considering the declination which I didn't change yet (otherwise I would have hit the 15' minutes barrier and needed 16' :) )

Kind regards,

François

Colin | Feb. 4, 2020

Incredible hardware, code and docs to get it running!

A couple years ago, I wanted to put something together like this, but I knew it was a daunting task. I didn't have the time to work on it, but I sure am glad that others have. You guys hit this one out of the ball park.

When I first got it wired up on the breadboard, I would only get one set of readings (repeated over and over), then I discovered I left off the interrupt wire. After I got that sorted out and my Teensy 3.5 started seeing updates, it was just a matter of following the extensive documents that you put together to calibrate the sensors.

The only issue I have now is I seem to have done something to stop the Teensy 3.5 from communicating with the Ultimate Sensor Fusion Solution board. I had everything working fine on the breadboard, but once I moved the parts to a perf board and soldered the connections, I get an acknowledgement from I2C address 0x28, but the Sentral Status is 255 which is not documented in the EM7180 datasheet. I'm questioning the I2C communication as being the problem, but I'm not sure. Perhaps I need external pullups, but it somehow worked on the breadboard without them? Any suggestions would be appreciated. I'm ordering another Ultimate Sensor Fusion board for another project and I'm hoping I can get the first ones running again as they are flat out awesome in one small cost effective package!

EDIT***
I'm back up and running. I found about 6 lines of I2Cdev.cpp that got deleted (my 2 year old loves pushing buttons when I'm not looking, or perhaps I have fat fingers!). I also rebooted everything, and with the file fixed, it sprang back to life. I was so sad thinking I broke the board already. Thanks for your offer to help. You guys are the best!

Response from Pesky Products | Feb. 4, 2020

Thanks for the kind words and detailed review Colin!

I can only guess that there is something wrong with the connections between the USFS and the Teensy. If you are able to read the I2C address of the EM7180 then it is unlikely I2C is the problem (there are pullups on the USFS board). Please send me an e-mail at tleracorp@gmail.com and we will try to help you sort out the problem.

Franz | Jan. 1, 2020

quick shiping

For LiPo battery charger add-on for Teensy 3.1

I use the Digital Micro for the Open City measurement projekt https://luftdaten.info/laermsensor-bauen/. The first device work well. I don't know about the enviorement behavior, but hope the best.
The online Shopping was easy and quick, thanks.

Dmitry | Dec. 30, 2019

Works, but DRV8838 doesn't support coast mode :(

For DRV8837 H-Bridge DC Motor Driver

Works. But wish there was a warning in the documentation, that DRV8838 doesn't support coast mode :( Also the pins on the board are marked rather arbitrarily as F and R. For DRV8838, F is PHASE and R is ENABLE.

Response from Pesky Products | Dec. 30, 2019

Both the DRV8837 and DRV8838 support coast mode when the inputs (Forward and Reverse pins) are High-Z. A quick look at the DRV8838 data sheet (https://www.ti.com/lit/ds/symlink/drv8838.pdf, page 11) will confirm this.

Yes, the board labeling is more appropriate for the DRV8837, but the schematic should make clear enough how to use the board.

Response from Pesky Products | Dec. 30, 2019

Both the DRV8837 and DRV8838 support coast mode but for the DRV8838 the sleep pin is used and these are ganged in this board design so all four motors would be in coast mode. Maybe not too convenient.

Yes, the board labeling is more appropriate for the DRV8837, but the schematic should make clear enough how to use the board.

Gregory | Nov. 10, 2019

Great product except mechanical brittleness of switch.

Very handy product. It is possible to mount on top or bottom of the Teensy (I put it on top) but be careful of the battery polarity if "flipped."

I would give it five stars except for the mechanical brittleness. The battery connector should be glued down or, eventually, the pins will fatigue and break. It is not a problem for "one-time" connect-and-forget of a battery, but a huge problem for prototyping where batteries are often disconnected and reconnected.

Even more brittle is the power switch. Again, probably not an issue for many, but the four units I received had very little mechanical strength here in the direction out of the board plane (up). Bad reflow? Not sure, but very hard to repair. I would suggest adding some through-hole holes so that an external switch can be wired. Sure, the board is tight, but I think it could be done. Another option is a surface-mount switch with a more rigid mounting to the PCB.

Of course, the designer warns you about it in the product description. However, that doesn't solve it. Maybe a dollop of epoxy for users who care?

Thanks for reading.

Response from Pesky Products | Nov. 10, 2019

Thanks for the detailed review.

Yes, the switch can come off if pushed out of plane. I hand assembled these using low temp solder paste so perhaps these are less robust than they could be, but then there are only three small solder pads to hold the switch down so I think even with proper production soldering this will be a weak point in this small design.

I have changed the ALPS switch to the variant with lugs in the STBC08 high-current version of this battery charger which is produced in a a proper fab but even here there is the occasional de-mounting of the switch reported.

This is an open source design an if you are willing to trade a little larger size for more PTHs or a different switch design it is easy to modify to taste.

I think your idea of gluing the LiPo battery connector might be extended to the switch to provide more lateral strength.

Jan | Oct. 12, 2019

Nice and practical

Very nice and handy product. The only problem I have is the luck of information how to use it on a popular platform - Raspberry Pi.

Justin | June 19, 2019

What voltage is requred for the optical flow board?

Hi, I purchased this board and the optical flow board from Pesky Products. For reasons unknown, I cannot contact the seller (when I submit a question it says "Forbidden") or leave a review on the optical flow page, so I am asking this question about the optical flow board here.

https://www.tindie.com/products/onehorse/pmw3901-optical-flow-sensor/

What voltage is required for the optical flow board? The page says 3.3 V, but when I do that, the sensor does not detect any motion, but seems to work otherwise. If I irresponsibly assume the NCP161 will handle it (the spec sheet says 5.5 V max) and connect the board to 5 V, it gives sensible output, but it is flaky and seems to skip or freeze. I feel like I've missed something and could use some direction.

I am using a name brand Arduino Uno, and the Bitcraze PWM3901 library, pretty much following what is done at the following link, but without the distance sensor: https://www.bitcraze.io/getting-started-flow-breakout/. I also have an Ethernet board attached to the Uno.

Thanks for any help.

Best wishes,
Justin

Response from Pesky Products | June 19, 2019

For trouble with the Tindie page function please send Tindie a message.

PMW3901 data sheet says maximum VDDIO is 3.6 V so I would think you might have broken your sensor applying 5 V. I am not sure why it doesn't work at 3V3 but this is the correct voltage. Maybe the SPI on your UNO only works at VDDIO = 5V? Why not try a 3V3, 32-bit MCU? If you have other questions please send me e-mail at tleracorp@gmail.com.

Sergio | April 30, 2019

Good product poor docs

Product arrived earlier than aspected!
Unforynately no PINs to connect it to breadboard.
It works well.

Response from Pesky Products | April 30, 2019

Not sure what the problem was that you had Sergio but it sounds like you managed to get the microphone working. Yes, there is no step-by-step tutorial on how to connect the microphone breakout to your microcontroller. But the I2S port is not complicated and once you have identified it on your microcontroller (I have listed the connections for many popular ones on the product page), hookup should should be straightforward. In any case, you can always ask me if there is something you want to know. Also the ICS43434 data sheet is an excellent reference for how these microphones work.

E.J | April 22, 2019

Really nice little breakout board !

For All-ST Motion Sensor Breakout Board

I bought the board in order to evaluate the LSM6DSM and LIS2MDL sensors, which I needed as successors to Freescale's MAG3110 and Invensense's MPU6050.
Initially I could not obtain the schematics. Then Kris Winer kindly pointed out the URL and I was set to go.
The breakout board was used in conjunction with ST's STM32L476 Discovery board, and I wrote a few proprietary drivers to deal with the sensors.

The board was very easy to use, a few header cables connecting it to the mother board was all that was required.

I join Kris in his praises of the sensors, because it appears to me that ST has done an extremely good job building them. They are low power, inexpensive, fast, very accurate and relatively easy to use!
The only (mild) criticism on my part is ST's technical writing which at times is cryptic about the features and capabilities of the ICs. Especially the LIS2MDL datasheet is written rather poorly.
I recommend this board to anyone who wants to venture beyond the Invensense ICs - The ST ICs are great and this board will help you find out for yourself.

Jim | April 20, 2019

Worked as advertised

These are great microphones, give very nice output. I used them with raspberry pi. I was originally using the Adafruit breakout board with the knowers microphone, but the output had a erroneous DC offset and the envelope was non-symmetrical, these are much better microphones.

Julius | March 31, 2019

A+

For STBC08 High-Current LiPo Battery Charger

Amazing sensor!
Guaranteed fun to work with. With the example code the development of any application is done in short time.

Doug | March 26, 2019

Great experience, awesome support

I'll be honest and say that I only just got the charger hooked up to my Teensy LC tonight, so I can't say much about how well it works yet, but I can tell you this guy's support blows everything I've ever seen out of the water. My order got here earlier than expected. I emailed him with questions a few times, and every time I had a question he answered within 15 minutes (which I would never hold anyone to). Above and beyond and very professional.
There is complete documentation on the charger, but some of it is on the page for the earlier version of the charger. There is a link on the page to it.
In case anyone else runs into the issue I had of the red and yellow lights being on but the Teensy not responding to anything, check to be sure you don't have the battery connection backwards. :D
It's pretty exciting to see my Teensy sitting there blinking without being plugged in to anything! Would 100% recommend. I'll definitely be back, and will probably try out a few of the other cool things he has for sale.

David | March 22, 2019

Good product, good seller

For Ultimate Sensor Fusion Solution - LSM6DSM + LIS2MD

I'm very happy with the quality of this sensor board. It shipped very fast and arrived very fast from across the country. I was able to install the demo project from Github and was able to wire it up to a Teensy and get it running with no issues (aside from my not following directions). This will be going onto a mobile platform tomorrow!

Andrew | March 10, 2019

Fantastic

Very consistent readings with little effort! Couldn’t be happier. It would be nice if example code and resources were better organized and centralized in one place.

Response from Pesky Products | March 10, 2019

Yes, we have made an attempt to gather the latest complete sketches for a variety of popular MCUs on github (https://github.com/gregtomasch/EM7180_SENtral_Calibration) to avoid some of the confusion resulting from the years of development. And, of course, there is the wiki (https://github.com/kriswiner/EM7180_SENtral_sensor_hub/wiki) which we try to keep updated. But yes, these are not in one place so the user will have to bear with some "disorganization".

Response from Pesky Products | March 10, 2019

Thanks for the kind words Andrew!

Yes, we have made an attempt to gather the latest complete sketches for a variety of popular MCUs on [github](https://github.com/gregtomasch/EM7180_SENtral_Calibration) to avoid some of the confusion resulting from the years of development. And, of course, there is the [wiki](https://github.com/kriswiner/EM7180_SENtral_sensor_hub/wiki) which we try to keep updated. But yes, these are not in one place so the user will have to bear with some "disorganization".

Jason | March 6, 2019

Bargain item

For LSM9DS0 9 DoF IC

Good sensor at a cheap price. They can be quite expensive if bought at digikey or mouser. Fast shipping.

Jon | Feb. 25, 2019

Very nicely done

I got my board, and took Simon's Raspberry pi python interface (https://github.com/simondlevy/EM7180) and ported it to MicroPython (which took about ten minutes and five lines of code changed). It worked flawlessly first time, and I look forward to using it in my autonomous drone.

Matt | Feb. 13, 2019

great sensor, got it working fast

For Ultimate Sensor Fusion Solution - LSM6DSM + LIS2MD

An interesting sensor, that would probably have been too hard for me to use on my timescale (necessary to load a firmware and have an eeprom on board). The hard work's been done and this breakout board makes it easy to interface with I2C @3.3v.

We are using it to ensure the LEDs we are using in our product are up to spec. I'm turning off the central light, and then measuring the red, green and blue LEDs inside an RGB package, then plotting a graph. Much more information that the typical TSC3200 sensor often used for colour sensing applications.

Robert | Feb. 7, 2019

the ULTIMATE sensor fusion board to date!

Like Kris (but with a lot less scientific of an approach!) I waded through several different MPU chips, combinations of them, magnetometers, etc, and always had issues with either my AVR not being able to hack doing the math, drift from the gyro making the heading useless, or bizarre magnetic anomalies I couldn't calibrate for (and yes I'm aware of calibrations and soft iron corrections and all that...) I had even made a self learning routine to take these into effect but it just wouldn't do. The only sensors I haven't fooled with are the Bosch ones. BNO0xx units... The high end ones are impractical without making your own boards and the... anyway, I digress.

TLDR; This board couples some of the latest sensors together with the SENTRAL chip to produce OUTSTANDING results right out of the box. I am gobsmacked looking at my debug output and the flat lines on the plotter as it sits quietly on my desk. If you have struggled with these things, give this board a try, you'll be glad you did!

Did I mention how super small and low powered it is?? Kris does a better job explaining this all, go read his write-up. Go.. I'm verklempt!

Jean-Michel | Feb. 5, 2019

Great product :)

For nRF52832 Development Board

They arrived quite fast, before I had time to get a SWDIO programmer :) Great build quality. Looking forward to play with it!

Julien | Jan. 1, 2019

Great board