Tindie

Avatar

Visgence, Inc.

242 orders since Aug 28, 2013

6 Reviews

Las Cruces, NM, United States of America

Ships from United States of America.

Custom Work Available

Power DAC Shield

Power DAC Shield

Visgence, Inc.

$29.00

DIP RJ45 Breakout Board

DIP RJ45 Breakout Board

Visgence, Inc.

$5.00

MOSFET Switch

MOSFET Switch

Visgence, Inc.

$14.95

Power DAC Module

Power DAC Module

Visgence, Inc.

$25.00

RS485 Stick

RS485 Stick

Visgence, Inc.

$15.00

K-Type Thermocouple Conditioner

K-Type Thermocouple Conditioner

Visgence, Inc.

$50.00

Mobile Network Analysis System

Mobile Network Analysis System

Visgence, Inc.

$2000.00

ATMega328PU, DIP Package

ATMega328PU, DIP Package

Visgence, Inc.

$6.00

About

Our primary mission at Visgence is to make the Internet work great for everyone. Our work enables people to access local network and Internet resources faster, safer, and in more ways than ever before. We design and build networking solutions at every level: national data centers, major campuses, last-mile broadband, and small business. Visgence staff have all of the expertise required to integrate Things into today's Internet. We are experts in mesh networking, high-capacity wireless, data storage and servers, and web application development - all of the things required to bring complex networking projects to life.

Because our specialty is in remote sites and other innovative network environments, we often have to develop unique solutions to problems like power management, control, site monitoring, and data acquisition. Our Tindie store is stocked with the results of some of those projects and we hope that you can use them to make more cool stuff!

@visgence

Shipping Policies

No country selected, please select your country to see shipping options.

Rates to

Reviews

Review Breakdown

5
1 4
3 3
1 2
0 1
0

Average Ratings

Product: (4.60)

Documentation: (3.20)

Shipping: (4.80)

Communication: (4.60)

Christian | July 4, 2024

Works as expected and wasn't too hard to figure out

For Power DAC Shield

I used this with an Arduino Uno R4 Wifi. Since that uses the Renesas chip, I used the digitalWrite method (and not the port mapping method that's recommended with the older Atmel chips), and that worked just fine for my use case. I'm not aware of *any* board out there for any maker-friendly system that can drive a bipolar output at that voltage without a fair amount of finicky EE work. Driving the input of this one with two center-tapped 9V batteries in series (as one of their suggested ways) worked and was easy enough. I'm using a single board at this time but looking to get a second one. It's nice that they thought about how to stack multiple power DAC boards on top of each using the chip-select output if you want multiple independent outputs.

Tip: unless you enjoy soldering (I don't), get the variant with the headers already soldered on.

Josh | July 9, 2021

Very useful board, fills a gap with few other options.

For Power DAC Shield

I needed a 0-10V variable power supply capable of driving 100mA and there are very few other options besides expensive and hard to get lab equipment or rolling your own. These boards fit the bill and saved me a lot of time and expense.

I needed a total of 8 outputs, so ended up adding bodge wires for the extra chip select pins on the top 3 boards.

I also hacked one up for single ended operation. This gives me full 12-bits resolution across a 0-12V range. Instructions are here if anyone else needs this...

https://github.com/bigjosh/Voyant-power-DAC-array#dac-shield-modifications

Sure the code and documentation for this board could be better, but not too hard to figure out.

I just put in an order for my 2nd batch.

Michael | May 27, 2020

High Quality Microprocessor at a Great Price

For ATMega328PU, DIP Package

This is a great value for the three dollars it cost to purchase a microcontroller. Shipping was both quick and free, the seller gave lots of information on the product page, and the product itself was functional and from a name brand. Although the supplier itself does not directly offer documentation it is easy to find online.

Richard | Jan. 27, 2016

Great product.

For MOSFET Switch

I was a bit confused at the operation until they clarified.
You provide the desired voltage to switch on Vcc (e.g., 5 volt, 12 volt, ...) and the ground.
These wires should be sufficient to carry the desired load current.

You provide a switch signal (e.g., 5 volt or 3.3 volt) to the sw signal to close the switch and gnd to open the switch. The LED turns on when switch is closed.

When 5 volt or 3.3 volt are provided, the neg output connection is shorted to ground thereby completing the output circuit.

I wondered what would happen if I applied 110 volt ac. I found that a 150 watt bulb dimmed. No damage though so this product is robust.



Ross | Aug. 13, 2014

Seems like it works ok - Documentation is awful

For Power DAC Shield

With this board you get
1. the board
2. demo code (undocumented)
3. a schematic

It's not a complicated board. But to understand how it works I have to spend time trying to read somebody's undocumented code and then go to the schematic so that I can download the DAC data sheet so I can understand how that works. Why can't somebody from this company just spend an afternoon and write up some basic documentation?

Update-Will look forwards to the additional documentation. Product works as advertised and is very nicely executed.
Avatar
Response from Visgence, Inc. | Aug. 13, 2014
Hi Ross,

The Arduino Mega example is a little cleaner than the Uno example, but we'll get to work on them both up so they're easier to follow. We've also added a link to the MCP4921 (DAC IC) datasheet on the main product description page.

Thanks for the feedback, we're always looking to improve!

View All Reviews

Cookies help us deliver our services. By using our services, you agree to our use of cookies. Learn more.