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Rayshobby LLC

131 orders since Apr 07, 2013

4 Reviews

Amherst, MA, United States of America

Ships from United States of America.

OpenGarage -- ESP8266-based Garage Door Opener

OpenGarage -- ESP8266-based Garage Door Opener

Rayshobby LLC

$50.00

ESPToy WiFi dev. board (v2.0)

ESPToy WiFi dev. board (v2.0)

Rayshobby LLC

$12.99

SquareWear 2.4 (Arduino-based, Sewable)

SquareWear 2.4 (Arduino-based, Sewable)

Rayshobby LLC

$20.00

OpenSprinkler Pi (OSPi) v1.4+

OpenSprinkler Pi (OSPi) v1.4+

Rayshobby LLC

$78.00

AASaver 2.1 Semi-Assembled

AASaver 2.1 Semi-Assembled

Rayshobby LLC

$12.50

OpenSprinkler: Internet-based Sprinkler Controller

OpenSprinkler: Internet-based Sprinkler Controller

Rayshobby LLC

$150.00

Temperature / Humidity Sensor

Temperature / Humidity Sensor

Rayshobby LLC

$3.50

RF Transmitter + Receiver Pair

RF Transmitter + Receiver Pair

Rayshobby LLC

$6.00

About

I am a computer scientist and electronics hobbyist. I work on research problems in computer graphics, and write software systems. In my spare time, I work on electronic projects, particularly in home automation systems.

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Reviews

Review Breakdown

5
0 4
2 3
0 2
0 1
0

Average Ratings

Product: (4.00)

Documentation: (3.00)

Shipping: (5.00)

Communication: (5.00)

Vichaya | July 24, 2015

The RFToy is good. The "nRF24L01+" is another story

For RFToy - Arduino-based RF dev. board, with OLED

The picture of the nRF24L01+ module is that of a good module (or at least a better clone, probably very hard to find genuine Nordic from Chinese suppliers). However, the module as shipped is one of those even worse-quality epoxy blob modules with known incompatibility with the genuine nRF24L01+/better clones. Lots of passives are missing ... inverted ACK bit due to error in the datasheet, etc.

https://ncrmnt.org/wp/2015/03/13/how-do-i-cost-optimize-nrf24l01/

I'll keep the RFToy, but will probably just trash the nRF24L01+ epoxy modules --- not worth the time to debug.

Maxim | Feb. 19, 2015

Great little kit

For RF Transmitter + Receiver Pair

The kit works as advertised. Really easy to use with arduino or any other development board. There is plenty of information online on how to use this type of transmitters and receivers. You basically set it up like a low speed (2000 bps in my case) serial connection. In terms of programming, this is porbably the easiest transmitter/receiver set you can find. Keep in mind that it is a very basic radio. There are no built-in provisions for encryption, networking, etc. The signal would go through a wall or two (I am talking about drywall walls), but do not count on using these radios for long-range communications.
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Response from Rayshobby LLC | Feb. 20, 2015
Thank you for writing the review! Regarding the range -- increasing the voltage on the transmitter usually helps. The transmitter's operating voltage is up to 12V.

Andrej | Feb. 27, 2014

Great!

For Temperature / Humidity Sensor

Cheap and great sensors, easy to integrate and use!
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Response from Rayshobby LLC | Feb. 28, 2014
Thanks!

Patrick | Dec. 19, 2013

Awesome product!

For SquareWear 2.4 (Arduino-based, Sewable)

Now to find project for this little beauty :) Very well design Love it! easy to program!
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Response from Rayshobby LLC | Dec. 23, 2013
Cool. Thanks!
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