DelTino
Miniature Radios for Arduino on 2.4GHz



DelTino modules comprise an AVR processor, Cypress 2.4GHz transceiver, an H-Bridge and several IO. They have the Arduino bootloader installed.


Click to
enlarge
Name Price (est.) Size Pad spacing Motor output
Amps | Volts | PWM
Motor
outputs


Analogue
pads
Digital
pads
L
pad
R
pad
Info

H61
24
12.3 x
21.5mm
(0.5x0.9")
2.54mm
(0.1")
1.5A | 3.0-8.4v | <=16kHz
1.0A | 8.4-12.6 | <=250Hz
1 3 5 1
(analogue)
. Up to 16v operation (but see precautions)

H62-R
26
13.7 x
21.9mm
(0.54x0.9")
2.3mm
(3/32")
1.5A | 3.0-8.4v | <=16kHz
1.0A | 8.4-12.6 | <=250Hz
1 1 5 1
(analogue)
1
(analogue)
Integrated on/off electronic switch
Up to 16v operation (but see precautions)

H64-R
26
11.0 x
18.5mm
(0.43x0.73")
1.5mm
(1/16")
1.0A | 3.0-4.2v | <=16kHz
0.5A | 4.2-8.4v | <=16kHz
1 . 5 1
(analogue)
1
(analogue)
Integrated on/off electronic switch
Up to 13.2v operation (but see precautions)

Capabilities
The 'H' modules are designed for radio control of small models. They can be used as both a Transmitter and Receiver or alternate between the two for telemetry. They can also be programmed to be compatible with Spektrum and Walkera transmitters. Range is suitable for indoors and small outdoor sites. The modules have an integrated 2-direction brushed motor controller (ESC) and outputs can be made to control servos, lights, etc. The modules operate over a very wide voltage range (3-16v). The versions with electronic switches can be switched off with logic, sleep or touch.

Connections
* The input voltage can be measured to implement low voltage cutoff for battery-powered applications. This is in addition to the analogue pads listed in the table above.
* The 'L' pad is intended to monitor the voltage of a single cell lipo used with a boost regulator such as these. However, it can be used to measure anything up to 4.4v.
* The 'R' pad has components to control an integrated electronic switch with a reed switch (on-board) or remote pushbutton (not supplied).

Precautions
* DelTino modules operate at 3v and must not be connected directly to TTL outputs operating at 5v. A suitable circuit to reduce 5v to 3v is described in the example below.
* The H-Bridge has components rated for 2A. However, the 3v regulator and PWM generate heat especially at higher voltages so more realistic values are shown in the table. Heat sinks should allow higher currents.
* Output currents on ordinary IO pads must be limited (usually with external resistors) to comply with the Atmega328 specifications.

Programming
Sketches may be uploaded with the Arduino IDE and a suitable USB to serial connection such as a 3.3v FTDI cable or equivalent break-out board following the instructions for "Uploading Using an Arduino Board" with 8MHz internal clock. The connections for uploading sketches allow the Arduino IDE Serial Monitor to interact with the DelTino modules in the usual way.

Open source example
Arduino sketch to illustrate the initialisation and use of the Cypress transceiver for a PC-controlled model railway.

Commercial product
DelTino modules are sold as DelTang Rx6x receivers compatible with the popular Spektrum DSM2 and DSMX transmitters.



Available in August 2013, dealer inquiries welcome.

Links
Atmel ATMEGA328P
Cypress CYRF6936
Arduino
DelTang
Deviation Walkera



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