Customer #426421 on Graphic LCD Quickstart Guide
Hmmm. Just got one of these. Looking at the data sheet the supply voltage clearly states 2.7 – 3.3 Volts. So why are you powering these (in the above examples) with 5V. Trying to sell more :). These...
View ArticleCustomer #256401 on PRT-11358 - USB Battery Pack - 1000 mAh
I realize this sounds like a stupid question, but how do you use this?At first I thought I had a bad battery, but SparkFun sent a replacement and it behaves the same way:1) The power pins always show a...
View ArticleCustomer #426266 on KIT-08373 - Beginning Embedded Electronics - Power Supply...
This probable stupid to ask but what voltage and amps does it put out?
View ArticleCustomer #344403 on DEV-09521 - SerIO
I was trying to find the resolution (in bits) and speed of the Analog In ports. The manual’s discussion of resolution is awfully confusing in that it seems to contradict itself. It says the voltage...
View ArticleCustomer #344403 on TOL-11790 - Solder Paste - 40g (Lead Free)
30g is just 2g over an oz. Maybe someone got confused about the quantities.
View ArticleCustomer #344403 on SEN-09045 - Triple Axis Accelerometer - ADXL345
What is up with Bildr? To register, they require a question answer that I’ll bet most people don’t know off the top of their heads. I looked it up in Wiki. When I returned to their registration site, I...
View Articleratcrow on ProtoShield Assembly Guide
I just built one of these up yesterday, and this guide was helpful for getting started.Two suggestions for anyone else who doesn’t do much of this:First, it isn’t really necessary to measure the...
View ArticleCustomer #35889 on PRT-00743 - Break Away Female Headers - Swiss Machine Pin
What is the purpose of this type of header? Recently got a whole bunch of headers from Ebay (very low, sometimes none, shipment costs :) ), both male and female, but the standard 2.54mm male headers do...
View ArticleCustomer #233772 on TOL-11704 - Hakko FX888D Soldering Station
What about looking at it from another angle? Maybe start stocking 230v –> 110v 75W transformers, and then make a bundle thingie?
View ArticleKamiquasi on PRT-00743 - Break Away Female Headers - Swiss Machine Pin
Standard components fit in them very well, however – especially DIP/DIL parts (chips, matrx displays, etc.) and jumper wires, which tend to fit rather too loosely in the other headers.
View ArticleCustomer #411401 on COM-10080 - Thermoelectric Cooler - 40x40mm
wow the benefits of thermal recovery from tech like this could make many hot systems with ready cooling also produce suplimental electricity for them self.
View ArticleCustomer #426421 on LCD-10168 - Graphic LCD 84x48 - Nokia 5110
I think your math is a little off. a 0.5 V drop across 2200 ohms is about 0.25 mA not 2 mA. This is also what I measured using a 2K resistor in series with an ammeter. Just FYI.
View ArticleCustomer #426508 on ROB-11162 - i-Racer
can it be hacked and work with an arduino and a motor shield?
View ArticleCustomer #371549 on ROB-09014 - OpenServo
Why do you use the more expensive atmega168 when you could use something like the attiny2313 or atmega48 and lose a lot of the cost?
View Articlewhispers on DEV-09026 - Arduino Ethernet Shield
even cheaper than that now @ RS $20-24.00….and motorshields for $20.00 as well(not sure the quick price decrease? dropping line?)
View ArticleCustomer #56894 on BOB-11722 - Rotary Encoder Breakout - Illuminated (RG/RGB)
This is a great board for the RGB encoder. It makes it very easy to make all of the connections to the encoder. In addition, I found another non-advertised feature with this board.After the RGB encoder...
View ArticleSir. MiDri on SEN-00639 - Ultrasonic Range Finder - Maxbotix LV-EZ1
Does anyone know if this type of ultrasonic emitter is able to be used to measure volume inside a container? All of my research into the topic has shown that there’s not a huge difference in the design...
View ArticleCustomer #254234 on KIT-11042 - Beefcake Relay Control Kit
Can you elaborate the danger here? Is this product completely unsafe? Or just in some cases?I see a lot of concerning comments here, so I’d like to understand exactly what the risks are.
View ArticleCustomer #426660 on WRL-09582 - RFM12B-S2 Wireless Transceiver
Can anyone help me I’m looking for the smallest possible way to send an on/off signal. It’s to a DC device. I have a flashlight that I want to use a remote for and just turn it on and off. But I want...
View Article