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Customer #404961 on TOL-10707 - Soldering Iron Variable Temperature 50W

Which tips does this soldering station accept? Is it a standard size?

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MattCF on DEV-09026 - Arduino Ethernet Shield

According to my local stores manager they are getting more stuff in. Mostly seed studio stuff if I heard correctly.

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bau on DEV-11723 - Mux Shield II

Worth to mention The Mux Shield uses Arduino digital pins 2, 4, 6, 7, analog input pins A0, A1, A2, and optionally uses digital pins 8, 10, 11, 12.

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bau on DEV-09832 - Mux Shield

From what I understand so far – you loose those; no latch. Goes back to 0. IMHO terrible design but there isn’t anything like this out there so this is still a great product

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Customer #426685 on ROB-10846 - Stepper Motor - 68 oz.in (400 steps/rev)

I am building my own board for really simple operation. I have TI 8835 H-bridge chip with 3.3V supply. It can only drive 1.5 A per phase. Will it be able to drive this motor? Thanks!

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Customer #294363 on DEV-11780 - Teensy 3.0

The loader appears to be proprietary, and I’ve had trouble getting it working under Ubuntu. (Not to mention the creepiness of downloading binaries blindly from uncontrolled sources.)

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ovidiup on DEV-11605 - BeagleBone

What revision is this board?

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GeoffT on PRT-11214 - MOSFET Power Controller

The 3.0V threshold is for only 250uA drain current, and increases typically 100mV at 0degC, so 3.1V. A 3.3V supply at -5% tolerance is only 3.135V. Even if the driving device had zero drop from supply...

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Customer #415020 on SEN-10061 - LinkSprite JPEG Color Camera TTL Interface

Hi again, your example is easy to understand, thanks. I’ve tried using the example code on the link you posted with no luck. Having put serial prints in to debug it, I’ve noticed it enters loop() but...

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bri_huang on Cambridge Bound!

SXRguyinMA – We were able to open up more seats for the soldering class with the help of our friends at Artisan’s Asylum. Unfortunately, the hacking the Simon class requires more time to complete....

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MikeGrusin on SEN-08942 - Weather Meters

The color isn’t as important as the wire’s position in the connector. If you look at the clear connector, you can see where the colors line up. The circuits use the outer pair and the inner pair, so...

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MikeGrusin on PRT-00743 - Break Away Female Headers - Swiss Machine Pin

Machine pin (“round”) headers are more reliable (and typically more expensive) than square-pin headers. They grip tighter and provide more points of contact, which helps in high-vibration environments....

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Camalaio_ on TOL-00082 - Solder Vacuum

I didn’t get these from SparkFun, but have what seems to be an identical one from Princess Auto, so keep in mind I’m speaking about potentially different ones. Also keep in mind it is heavily used...

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MikeGrusin on KIT-08373 - Beginning Embedded Electronics - Power Supply Kit

The 7805 voltage regulator will put out 5.0V at up to 1.5A if it has a heat sink – without a heat sink, it will probably put out around an Amp before it gets too hot and shuts itself off (it will turn...

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MikeGrusin on PRT-09749 - JST Right-Angle Connector - Through-Hole 2-Pin

The datasheet covers this part’s whole family with different numbers of pins. For this particular one, refer to the “pole” table on the right-hand side, and find the two “pole” (pin) version.

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MikeGrusin on ROB-09014 - OpenServo

Sometimes it’s code size that’s the restriction. The smaller pin-count parts have less RAM and ROM than the larger parts.

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Customer #331581 on SEN-10061 - LinkSprite JPEG Color Camera TTL Interface

Hmm I did not test it with software serial, let me try that. Did you set the correct baud rate (38400)?

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Customer #421893 on BOB-11044 - Mono Audio Amp Breakout - TPA2005D1

I’m pretty sure now that this breakout board is working fine, the problem is with the output from my Musical Instrument Shield.

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Toni_K on KIT-11042 - Beefcake Relay Control Kit

The design of this board is not perfect, which we are aware of, and it is in the system getting revised. As with any AC circuit, safety precautions do need to be taken to prevent injury, especially in...

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Customer #421893 on DEV-10587 - Music Instrument Shield

Anyone getting incredibly weak volume coming from the L and R outputs on this shield? It’s so faint that when I hook it up to an 8ohm 0.5 watt speaker, I have to hold it against my ear to hear anything...

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