Worth the higher price

These are more expensive than most 18650s, but they are much higher capacity. I measured the batteries capacity with a Powerfocus BT-C3100, and the capacity really is about 3000 mAh. This seems unusual for a 18650 battery -- others I tested were a... These are more expensive than most 18650s, but they are much higher capacity. I measured the batteries capacity with a Powerfocus BT-C3100, and the capacity really is about 3000 mAh. This seems unusual for a 18650 battery -- others I tested were 25% to 75% of the claimed capacity. I've had no problems with the batteries: they charge properly and work well when charging my cell phone using a 5A booster. Read more

Impression: Quality;

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Works great, but look out for the narrow pins

This is by far the lowest price I've seen for an I2C temperature/humidity sensor. It appears to be a Dorji DSHT01 - or something identical - so it's well documented in Dorji's datasheet. You can find sample code there, or use the code from TH02 It... This is by far the lowest price I've seen for an I2C temperature/humidity sensor. It appears to be a Dorji DSHT01 - or something identical - so it's well documented in Dorji's datasheet. You can find sample code there, or use the code from SeeedStudio's TH02 sensor. It works as expected, with both temperature and humidity being quite accurate, better than I get with a DHT22. The only downside to this sensor is the pin pitch: 1.27 mm, rather than the common 2.54 mm. So, the pins are much narrower and more tightly spaced than most sensors. You'll have to use some creative soldering to connect it to a breadboard. Read more

Impression: Great quality, price;

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Works as expected when you need to convert an extender to an A-to-A cable

For some reason, A-to-A USB cables are becoming hard to find, but extenders are still common. For the relatively infrequent times you need an A-to-A cable, this is an easy way to convert an extender. The quality seems fine - I was suspicious about... For some reason, A-to-A USB cables are becoming hard to find, but extenders are still common. For the relatively infrequent times you need an A-to-A cable, this is an easy way to convert an extender. The quality seems fine - I was suspicious about the low price, but I haven't had any problems with mine. I don't really need 10 of these, but for the price I'm not complaining. I haven't used mine with a USB 3 connection - I suspect they aren't compatible. Power and data transfer definitely work, though. My box full of USB extenders now have a new life as A-to-A cables. Read more

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Great value, but a little flakey

This is an amazingly low price, and the device does work as expected. I haven't noticed any problems with the sharpness of the video signal, and haven't found any video sources that it isn't compatible with. The device is small and convenient for... This is an amazingly low price, and the device does work as expected. I haven't noticed any problems with the sharpness of the video signal, and haven't found any video sources that it isn't compatible with. The device is small and convenient for a desktop monitor that is shared among several devices. I use mine with a Raspberry Pi, a Beaglebone and a Cubieboard, and they all get along fine. Mine occasionally causes the monitor to go blank - to restore video, I have to unplug the monitor's cable then plug it in again. Given that most of the other reviews don't mention this, it must be a slightly defective unit, or perhaps a result of sharing the monitor among 3 low power devices. No remote control, but for the price that's not a con. I think it's a great fit for inexpensive HDMI sources, like the Raspberry Pi, where you don't need the video quality to be top notch. Read more

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Works very well when it works at all

I own a lot of solar toys, and this is one of the best working: it doesn't take much light to get the cat going. The motion is quite eye-catching, unlike the subtle nodding of some other solar toys. I ordered 3, and one of them was dead on When I... I own a lot of solar toys, and this is one of the best working: it doesn't take much light to get the cat going. The motion is quite eye-catching, unlike the subtle nodding of some other solar toys. I ordered 3, and one of them was dead on arrival. When I opened it up, one of the wires was clearly detached, and the coil appeared to be detached at one end as well. So, I took one star off for quality. Where I live, this solar toy is quite unique. I've seen others with the nodding men and the flapping plants, but the Waving Lucky Cat stands alone. An eye-catching, well-performing solar toy, but with a quality concern. Read more

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Great price and handy multi-voltage feature

This appears to be the real deal: works as expected for a BMP085 chip. This is the best price that I've seen for a BMP085 breakout board. The support for 3.3v is a very important for the increasingly common 3.3v platforms like the Raspberry Pi. 5v... This appears to be the real deal: works as expected for a BMP085 chip. This is the best price that I've seen for a BMP085 breakout board. The support for 3.3v is a very important for the increasingly common 3.3v platforms like the Raspberry Pi. 5v support also works without problems. The 2 mounting holes are also a nice design touch that is often not included on breakout boards. None The I2C support makes this compatible with most microcontroller platforms. Note that it doesn't handle humidity readings: if you need humidity, and don't need I2C or barometer, then product 151396 is a better choice. Good quality board at an excellent price. Read more

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Great quality, incredible price

Has all the features that I need for electronics projects: 3.3v and 5v outputs, USB output, on/off switch. Can switch between 3.3/5v/off independently on either end of the board Adds extra 4 ground and 4 voltage pins on topside of the board, it is... Has all the features that I need for electronics projects: 3.3v and 5v outputs, USB output, on/off switch. Can switch between 3.3/5v/off independently on either end of the board Adds extra 4 ground and 4 voltage pins on topside of the board, making it usable for non-breadboard projects too None Size is just right: large enough to stay anchored to the breadboard, but leaves enough space on the breadboard for your project. I can't believe the price: I've bought $10 breadboard power adapters that have fewer features and poorer quality Read more

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Feature-packed LCD with good software support

This is identical to the TFT01-2.4 LCD sold by ElecFreaks. You'll find tech specs and sample code on their web site. Compatible with the awesome UTFT library, with supports Arduinos, Chipkit (PIC) and some ARM processors. Specify the S6D1121 parm... This is identical to the TFT01-2.4 LCD sold by ElecFreaks. You'll find tech specs and sample code on their web site. Compatible with the awesome UTFT library, with supports Arduinos, Chipkit (PIC) and some ARM processors. Specify the S6D1121 controller (model parm ITDB24E_8). Compatible with the TFT01 Arduino shield (DX 179397) - I'm using mine with this shield Performance with an Arduino is surprisingly good: no noticeable lag with line graphics or large fonts. This is a 3.3V LCD, so if you plan to use it with a 5V platform like the Arduino you'll need to convert pins to 3.3V Based on the comments at the bottom of the page, there seems to be some confusion about whether the unit has 40 or 44 pins. Mine has 40, but is labelled "sod44pin" at the bottom. Go figure. Haven't tried the SD card socket yet. Amazing number of features for the price. Read more

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A Big Hat for Big Heads

This is a nice, roomy cap for people with big heads, like me. The front part of the hat is soft -- no plastic insert or mesh -- and the back has a long Velcro band. So, my head doesn't feel squeezed as it does in most baseball caps. Build quality... This is a nice, roomy cap for people with big heads, like me. The front part of the hat is soft -- no plastic insert or mesh -- and the back has a long Velcro band. So, my head doesn't feel squeezed as it does in most baseball caps. Build quality is quite good, and it feels like 100% cotton. It might be too big for people with small heads. Shipping caused the hat to arrive flat as a pancake, and it still looks flatter than in the photo. I'm picky about hats -- for every 10 hats I get, I end up wearing only 1. This one has made the cut. Read more

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Inexpensive drop-in replacement for DHT21

This is a drop-in replacement for the common DHT22 (aka RHT02) temperature/humidity sensor, but at half the price. I tried replacing a DHT21 in a sensor with this one, and the temperature and humidity readings are in-line with the DHT21. No so far... This is a drop-in replacement for the common DHT22 (aka RHT02) temperature/humidity sensor, but at half the price. I tried replacing a DHT21 in a sensor with this one, and the temperature and humidity readings are in-line with the DHT21. No downtime so far - quality seems to be good. None really. The DHT21 is a fussy sensor to program, requiring nano-second timing, so it's not the best choice for all platforms. But this product is 100% code compatible with a DHT21, and there is plenty of sample code to be found on the Internet. You'll probably want to put a 10K pull-up resistor between V and signal - the circuit I'm using it in has one, and that works well. This is the lowest price I've found for a DHT21 sensor, by far. You can find analog temperature sensors for less, but they are considerably less accurate. I doubt there is a cheaper humidity sensor out there. Read more

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