Tindie

For STBC08 High-Current LiPo Battery Charger

I've test it on my teensy 3.2 and it works very well ! in first time i've try on a 3.1 and the i've decided to change the 3.1 for a 3.2 and it's ok !

Raymond | Sept. 29, 2015

Great product!

I ordered the previous version to test my project on a small lipo battery and was very happy with the whole order process and the product.
The new product is even better!
Due to the higher capacity I can now use a 2200mAh lipo without problems for my design.

I can only advice to buy and try this perfect product!
Big thumbs up!

Jarrod | July 30, 2015

ICS43432 I2S Digital Microphone purchase

For ICS43432 I2S Digital Microphone

Boards work as expected. Alignment of the ICS43432 microphone sound port with the PCB sound port was verified with a microscope. Mic driver was not too hard to write in VHDL. Thanks!

David | July 27, 2015

Very good IMU

For BNO-055 9-axis motion sensor with hardware fusion

The BNO-055 is a very good IMU with its built-in fusion. This breakout's documentation could be better at explaining the minor pin uses, the desirability of the I2C pull-up resistors, and the need to do the figure-8s to calibrate the magnetometer. Most importantly, the documentation needs to address the BMP280 pressure sensor version -- there is no mention of this sensor's variation anywhere.

Response from Pesky Products | July 28, 2015

Thanks for the review David. There is a well-commented sketch that allows the full function of the BMP280 to be accessed as well as a link to the BMP280 data sheet. I am not sure what you mean by "sensor' variation" but if you have any questions about the breakout board I would be happy to try to answer them.

Richard | July 15, 2015

This works great. It does what I expect it to do.

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

I have purchased three and have them wired to Teensy 3.1. They sit very close to the Teensy 3.1 keeping overall profile low. I mount them on the bottom of the Teensy 3.1.

Kris's software works for original testing. My software allows me to perform data acquisition and to dump the data on request.

thanks Kris. Great job.

Oscar Javier | July 13, 2015

Excelent product.

For Wearable BNO055 Nano Board

The best compact IMU I've used. Very stable and reliable. Could be really helpful if you publish some examples on MBED.

Mathieu | July 10, 2015

Excellent service and product

For BNO-055 9-axis motion sensor with hardware fusion

I have ordered this breakout board from Germany. It is functional and very well documented. The code available on Github is also of great help. Keep up the good work!

Mat

Richard | July 3, 2015

Great little product.

For EM7180 SENtral Sensor Hub + 9 DoF Motion Sensor

I have my Teensy 3.1 configured with three if Pesky Products devices: the LiPo battery charger, the SPI flash and the EM7180 SENtral Sensor Hub + 9 DoF Motion Sensor.

They all play well together.

The Hub relies on i2c and was well-thought through to include pads that can be shorted to place the i2c pullup resistors on SCL and SDA. I missed this and had some problems on i2c. Once I shorted them, all was well.

Thibaut | July 1, 2015

BNO-055 9-axis motion sensor with hardware fusion

For BNO-055 9-axis motion sensor with hardware fusion

A good product, send quickly. Everything work great.

Just one thing : I haved some problem to know were exactly is the GND and VCC. Because when we look at the schema the pin connected to jumper SJ5 and SJ6 are not connected to the ship. I think the schema is not exactly the same as the board I received. Il will be good if schema have pine name like the board and if the picture can be in little better quality so we can see correctly the text. apart from that everything is perfect. Thank you very much

Just one question : do you know what is the coefficient of the rotating matrix using quaternion ?

what I want to do is to estimate the the deplacement of an object using the velocity and the double intagral of the mesured acceleration from the sensor.

but for that I need to convert the acceleration vector from the sensor to the earth referential so I need to use the rotating matrix R = [r11 r12 r13; r21 r22 r23; r31 r32 r33]. What are this coefficients rxx

-------------------
we have a mesured vector given by the sensor like acceleration V' = transpose([Ax Ay Az])

the sensor tell is orientation compared to the earth referential with quaternion Qx, Qy, Qz, and Qw

V' in the earth referential = V

V = Rotation_Matrix^(-1) * V'

So I need the coefficient rxx using quaternion.

Do you know it ?

Response from Pesky Products | July 1, 2015

I am not exactly sure what you are asking. The BNO055 outputs linear acceleration (with the component of gravity removed) so you could just double integrate this to estimate position. This is likely to be pretty coarse though since errors will accumulate quickly.

Richard | June 29, 2015

Very well thought out. Works great so far.

For BNO-055 9-axis motion sensor with hardware fusion

I mounted the charger on Teensy 3.1 . I missed, at first, the need to have a pin connecting the VUSB to the Teensy for charging. Once I got that, the device charges when plugged in and provides power when no usb is plugged in. This is ideal for a developer that is testing the software plugged into USB as it charges the battery during development.

A convenient switch turns on and off power. A red led indicates charging and a green led indicates power on.

No Teensy should be without one.

Clint | June 18, 2015

Excellent product. Teensy3.1 Pins 16 & 17 were challenging.

Excellent product, though there are a few challenges to getting this working as a shield with the Teensy3.1...

First, pins 16 & 17 aren't the default SDA0 and SCL0 - At first I thought I'd have to use the i2c_t3.h library and add I2C_PINS_16_17 to the i2c's begin() function. Unfortunately, the latest (as of 6/18/2015) i2c_t3.h library is flaky and would crash within minutes of a restart. After much debugging to determine that the problem was indeed the library, I had to resort to modifying and using PJRC's Wire.h library included in the Teensyduino package in order to use pins 16 & 17.

To modify the library, in Wire.cpp, I simply substituted 17 instead of 18 wherever Pin 18 was used, and substituted 16 for 19 wherever pin 19 was used. An example:

#ifdef T3_I2C_PINS_16_17 // I define this when I want to use pins 16 & 17
CORE_PIN17_CONFIG = PORT_PCR_MUX(2)|PORT_PCR_ODE|PORT_PCR_SRE|PORT_PCR_DSE;
CORE_PIN16_CONFIG = PORT_PCR_MUX(2)|PORT_PCR_ODE|PORT_PCR_SRE|PORT_PCR_DSE;
#else
CORE_PIN18_CONFIG = PORT_PCR_MUX(2)|PORT_PCR_ODE|PORT_PCR_SRE|PORT_PCR_DSE;
CORE_PIN19_CONFIG = PORT_PCR_MUX(2)|PORT_PCR_ODE|PORT_PCR_SRE|PORT_PCR_DSE;
#endif

And everywhere the attachinterrupt() and detachinterrupt() functions are called, I did it like this:

#ifdef T3_I2C_PINS_16_17
attachInterrupt(17, TwoWire::sda_rising_isr, RISING);
#else
attachInterrupt(18, TwoWire::sda_rising_isr, RISING);
#endif

...and:

#ifdef T3_I2C_PINS_16_17
detachInterrupt(17);
#else
detachInterrupt(18);
#endif

No changes needed to be made to Wire.h.

Also good to note is that, unlike AdaFruit's BNO055 breakout, the BNO055's default i2c address on this board is the BNO055_ADDRESS_B, rather than the AdaFruit library's default of BNO055_ADDRESS_A. If using the AdaFruit library, and you haven't soldered the AD0 jumper pad, the instantiator will need to look like this:

Adafruit_BNO055 bno = Adafruit_BNO055(-1,BNO055_ADDRESS_B);

I hope this helps someone else avoid my debugging headaches. I had a lot of changed components and it was really hard to determine whether it was a hardware issue (pullups, etc.), or a library issue with i2c_t3.h. Turns out it was the library. Now that I'm using my modified PJRC Wire.h library, it works like a charm and doesn't crash.

Response from Pesky Products | June 18, 2015

Hi Clint,

Thanks for the detailed review and I am sorry you had so much trouble. I have used the i2c_t3.h library with this and other sensor breakout boards with success for many months so I can't imagine what was the problem. But I'm glad you got it sorted out in the end!

Kris
Pesky Products

Sylvain | June 17, 2015

Very cool

For BNO-055 9-axis motion sensor with hardware fusion

The micro add-on shield is perfect for teensy 3.1, Kris responds to questions very fast. I'll order new items soon

Josh | June 11, 2015

Worth every penny!

For LSM9DS1+MS5611 breakout board

I am a big fan of Teensy boards...
I bought this board for use in a arduino-pro/nano -- and boy is it small!
Maker is very responsive to email & no doubt the board will perform well.

Matthew | June 9, 2015

Great Product!

Ridiculously small. Very useful for easy orientation tracking and requires very little program space or processor cycles. I used it to integrate into a boat tracking and efficiency optimisation system that was running very low on available program space with an arduino, worked beautifully. Thanks for making this breakout and the very comprehensive example code Kris!

Arnaud | May 25, 2015

Works as advertised, Very compact, Awesome support from Kris

Works as advertised. Very compact. Awesome support from Kris. Responses to my emails were very quick, even during weekends.

Kevin | May 22, 2015

So freaking small!

For BNO-055 9-axis motion sensor with hardware fusion

A silkscreened reference dot on gnd would be helpful. It's a sad day when you realize you've mounted it shifted right! :(

The micro is a great board. Pesky+Teensy are a nice combination.

Joan | May 13, 2015

Brilliant

Thanks for the great product Kris. From the States to Denmark in just 6 days with normal international postage!

I will update this review on the actual product when I get a chance to play with it.

Thanks!

Dylan

Gabriel | May 13, 2015

Excellent product!

I'm using this for medium-precision motion tracking. I'm using my own (simple) sensor fusion algorithms, and LOVING it. I've now integrated this into 3 different projects, and it "just works".

It takes a little doing to get the thing soldered to the back pads of the Teensy reliably -- I realized that tinning the pads before attaching the add-on is what needs to happen. Otherwise, it's a little harder to get the right heat on the pads with the add-on in the way. However, once I figured this out, installation was a snap.

Kevin | May 11, 2015

All the products from Pesky are great

Super small device. Excellent shipping (received in less than 48hrs). Consistently exceeds expectations in every regard.

Gautam | April 23, 2015

nrf24l01+'s for two teensy boards

For nRF24L01+ add-on for Teensy 3.1

I needed a lightweight, small wireless solution for two Teensy boards to communicate with each other, and this fit the bill perfectly. I've tried several others, such as xbee and ASK, and other nRF24L01+'s, each with their own headaches. Couldn't be happier with these modules.

Response from Pesky Products | April 23, 2015

Thanks for the kind words! I've found these little boards very useful and I am always gratified when others see the same value.

Nicolas | April 19, 2015

I may need a little help

For BNO-055 9-axis motion sensor with hardware fusion

I soldered it like the photo bellow and it works perfectly.
I had to modify the sample code on github to make it run on the teensy, but with the help of the seller, I was able to have it running after a few tries. For those of you that are interested, here are the modified files : http://stuff.knackes.com/dld/201504/LSM9DS0-MS5637-TeensyMicroShield_B6C99626.zip

Thank you for this great board ! Review Image

Response from Pesky Products | April 22, 2015

This is a common problem. The micro boards soldered to the back (yes, yours is mounted correctly) use the I2C port on pins 29/30, which requires using the wire1.begin(xxxx) and wire1.write(xxx) etc. The sketch you pulled uses wire.begin(xxx). You have to specify the correct I2C pins 29/30 in the wire1.begin call and you have to use the "1" in wire1 for these bottom pins with the i2c_t3.h library.

I hope this is clear. If not, please contact me using the "Contact Me" button on the Tindie site.

Ted | April 13, 2015

Beautiful little board!

Just got it today, and I only ordered 2 days ago. I haven't had a chance to use it yet, but I have looked at it and it looks great, it is small and well made. I'm looking forward to trying it out, there is some documentation that I need to read (could be more, but no complaints). Thanks!

Eric | March 27, 2015

Awesome product! Even more awesome service!

For BNO-055 9-axis motion sensor with hardware fusion

Kris promptly answered all my questions to help me decide which board is best for my application. My order arrived within a few days without a hitch. I ran into some issues testing out the example code (my fault, the code is great), and Kris debugged the issue for me right away. The product worked even better than advertised. Thank you Kris!

Sathish | Feb. 17, 2015

Works fine

Received in right time. Designed PCB occupying very low space. Nice soldering . Board works correctly with my dsPIC.
Working on this sensor to get it my application.

Thanks Pesky product.

Sathish | Feb. 17, 2015

Good Work Kris

For EM7180 SENtral Sensor Hub + 9 DoF Motion Sensor

After ordering within 10 days it is shipped to India with the low cost, Nobody will do so...Great tindie.

Kris given Neatly designed low board space PCB, nicely soldered all components(BGA pads there). He already completed 70% of work. 1. EEPROM firware written and its correctly uploaded in the PCB itself.
2.An example program also he given.
3.Bonus he added altitude pressure sensor in the PCB.
Good work Kris. Thanks

Working on this sensor for my application.

Jb | Feb. 1, 2015

works as described!

The seller responded quickly to my questions and was generally very helpful. Will buy his products again.

Bob | Jan. 31, 2015

Outstanding customer service

For BNO-055 9-axis motion sensor with hardware fusion

The help I received working through my problem was fantastic. It appeared that would be the case, that is why I bought from here. I was not disappointed in the least. Fast. Courteous. The problem was mine and they helped me find it.

Robert | Jan. 27, 2015

Awesome little breakout for a cool chip

I have the example code running on a ATMega32U4 based Arduino (Pro Micro) at 500hz (hardware fusion).

N.B. Needs a logic level converter that can handle I2c so you can have a 5v Arduino on one side and the BNO-055 on the other but works a treat!

Need to dig into the datasheet to see if there's a way to store the Mag Calibration (perhaps store it in eeprom on the pro micro)

Connor | Jan. 20, 2015

Works well

Well designed and fits together nicely into my project.

Connor | Jan. 20, 2015

Great product

For BNO-055 9-axis motion sensor with hardware fusion

Does exactly what I want, and does it well.

Marco | Jan. 15, 2015

BNO-055: Absolutely Fantastic!!!!

I quote an old comment because it's really true!

"I don't usually have the time to write feed back however the help I received from Chris Winer (Pesky Products) was absolutely fantastic so a well deserved thank you Chris!! The boards arrived on time, in perfect condition and functioned exactly as advertised. To date the little board is the most fun I've had with embedded Linux. I highly recommend anything supported by Chris and Pesky Products."

Thanks Kris

Gerald | Jan. 15, 2015

it's great, works as it should

Simple plug onto the Teensy and use a Lipo cell as simple as possible. Shipping to Germany worked fine.
Single drawback: the on/off switch is too fragile. It is still working but usage needs elevated concentration.

Paul | Jan. 15, 2015

blackoutlight

For Blackout Light

These are great, simple no solder snap on a 9volt battery and wait for hurricane.

Kabe | Dec. 26, 2014

Does what it says. Just as it says.