Parallax 700-10016 User manual

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Key Fob Remote (#700-10016)
This Key Fob Remote and Receiver PCB can be used to control your custom projects from up to 50 feet
away. The remote and receiver are pre-synchronized for your convenience. Just press a button on the
remote to make the corresponding output pins on the Receiver PCB send a 5V high signal. It is an
affordable way to add wireless human input to your projects.
Features
●4 channel control
●Signal indicator LED
●Remote and Receiver PCB are
pre-synchronized
●Up to 50 foot line-of sight range
●Source 40 mA per Receiver channel @
5 VDC for your projects
●Pre-installed battery in the remote
Specifications
●Operating frequency: either 315 MHz band or 433 MHz band may ship
●Standard 0.1" pin spacing
●Range: Up to 50 feet (15.25 meters) line-of-sight
●Power requirements: 5.0 VDC; 40 mA @ 5 VDC per receiver channel
●Communication: TTL level
●Receiver PCB Dimensions: 1.34 x 0.96 in (3.40 x 2.44 cm)
●Operating temp range: -4 to +158 °F (-20 to +70 °C )
Copyright © Parallax Inc. Key Fob Remote (#700-10016) v1.3 7/10/2023 Page 1 of 4

Receiver Board
The diagram below shows a typical intervade to
the Key Fob Receiver Board. Resistors indicate
your added devices (e.g. microcontroller I/O pin,
relay, etc.)
The receiver board only needs 5 VDC on the VCC
pin. Once it is powered up, you are ready to
connect “VT” or any of the “D” pins to your
project. The Receiver Board has a pre-soldered
antenna in “ANT2”. To add even more range to
the receiver you can add your own antenna to
“ANT1” on the receiver board.
The receiver is pre-paired with its remote.
Should your receiver not respond to the fob and
you need to repeat the pairing process, see the
video posted on the 700-10016 product page at
www.parallax.com.
Copyright © Parallax Inc. Key Fob Remote (#700-10016) v1.3 7/10/2023 Page 2 of 4

Keychain Remote
The Key Chain Remote has four buttons. The large buttons are labeled A and B; the smaller buttons are
labeled C and D. The table below shows which pins on the Receiver Board that become active “high” (5
VDC @ 40 mA) when its corresponding button is pressed. When a button is released, its pin goes back to
a “low” state.
Keychain Button
Receiver Board Pins
A
VT and D1
B
VT and D2
C
VT and D3
D
VT and D4
Adding Additional Remotes
The Remote and Receiver PCB are pre-synchronized. You can synchronize the PCB with additional
keychain remotes by pressing and holding down the PCB’s “pairing button” while pressing any of the
buttons on the Remote want to add.
Changing the Remote's Battery
The remote uses one size 27 A, 12 V alkaline battery. The remote comes with the battery pre-installed,
and it may be replaced if needed. To access the battery compartment, remove the three tiny Phillips-head
screws on the back of the remote, and remove the back cover.
Copyright © Parallax Inc. Key Fob Remote (#700-10016) v1.3 7/10/2023 Page 3 of 4

Revision History
Version 1.1: Documentation updated to correct for range.
Version 1.2: Changed operating frequency from 433 to 316 MHz band.
Version 1.3: Changed operating frequency to be one of either 315 MHz or 433 MHz band.
Copyright © Parallax Inc. Key Fob Remote (#700-10016) v1.3 7/10/2023 Page 4 of 4