DT / DelTang DSM2/DSMX Micro Receivers

UK designed and manufactured DSM2/DSMX ultra micro 2.4GHz receivers. All of these receivers are fully compatible with Spektrum, E-flite, Parkzone and other DSM2/DSMX 2.4GHz transmitters and transmit modules. These receivers are not copies of Spektrum products.

Some receivers are available now with DSMX support: Rx31, Rx32d, Rx35 and Rx37. Other Rx3x and Rx4x actuator receivers are available with DSMX to order - please send an email if you need DSMX support in a receiver listed as DSM2 only.

Most of the receivers have a built-in 2A brushed ESC - the Rx31 is also available without the ESC FET fitted to save weight. All of the receivers have the throttle signal available, either via a connector or solder pads, so you can connect an external ESC. If you do use an external ESC, simply ignore the brushed ESC connectors.

These receivers are designed for aero models. If you are looking for receivers with fwd/rev ESC for vehicles, boats, trains then take a look at the 'v5' and Rx6x receivers.

DSMX Support:
Most of these receivers are available with beta support for DSMX. This is v3.5 firmware and, although it has been demonstrated to work with several DSMX transmitters, is is considered 'BETA' and is not proven or guaranteed. If the v3.5 software does not bind or work correctly with your DSMX transmitter, the receiver can be returned for the current stable v3.4 software to be installed; this only works with DSM2. Customers will normally be expected to pay postage both ways.

Choose v3.4 if your transmitter supports DSM2.

Servo Receivers


Rx31 DSM2/DSMX Ultra Micro Receiver

Rx31 is a DSM2/DSMX compatible 4 channel micro receiver without connectors to minimize weight. Channels 1-4 (Throttle, Aileron, Elevator, Rudder) are available as solder pads on the circuit board. The receiver can also support an on-board 2A brushed ESC with motor connection via circuit board pads. The receiver is also available without the ESC FET installed to save weight when a built-in ESC is not required.

The Rx31 is available with and without the ESC FET installed for a small weight saving. It is also available configured for 7 channel output on the ch2 pad encoded as 16 byte RS232 serial or sequential PPM (aka 'SumPPM'); an inverted PPM signal is also generated on the ch1 pad. SumPPM is useful for driving a quadcopter controller. Please use the drop-down menu below to select the type you require: no FET and separate outputs; FET installed and separate outputs; serial output; and sumPPM output.

Rx31 no FET
Size:9.9 x 9.3 x 2 mm
Weight:0.23 gm
Esc:none

Rx31 FET Installed
9.9 x 9.3 x 2 mm
0.26 gm
2A brushed

Rx31 Serial
9.9 x 9.3 x 2 mm
0.23 gm
none

Rx31 SumPPM
9.9 x 9.3 x 2 mm
0.23 gm
none


Click for larger image

The serial and sum versions of Rx31 produce a combined output stream on the ch2 pad and have no ESC fitted.

Please see note above about DSMX support


Rx31d DSM2/DSMX Ultra Micro Receiver with Twin 2A ESC

Rx31d is a DSM2/DSMX compatible 4 channel micro receiver with twin on-board 2A ESC. Channels 1-4 (Throttle, Aileron, Elevator, Rudder) are available as pads on the circuit board. The rudder or aileron channels may be mixed into throttle for differential thrust steering.

Rx31d
Size:9.8 x 10.2 x 2 mm
Weight:0.24 gm

Download the Rx31d user instructions.

An adapter board MAG31d is available to convert Rx31d to use the Bahoma power connector system.

Please see note above about DSMX support


Rx32d DSM2/DSMX Ultra Micro 9 or 18 Channel Receiver

Rx32d is a DSM2/DSMX compatible 9 channel micro receiver without connectors to minimize weight and with no on-board ESC. All channels are available as pads on the circuit board - requires soldering.

Rx32d v3.5.x
Size:11.1 x 12.0 x 2 mm
Weight:0.28 gm
Voltage:3V - 10V

Rx32d-18S v3.5.x
11.1 x 12.0 x 2 mm
0.28 gm
3V - 10V
18ch SumPPM on pad 3


Click for larger image

The Rx32d is only slightly larger and heavier than the Rx31d but with 7 or 9 channels instead of 4. It has no on-board ESC or serial/sumPPM output. View the v3.4.x (7 ch) or v3.5.x (9 ch) user instructions. The v3.4 firmware has the second throttle output, steering mix and serial/sumPPM but is DSM2 only.

The Rx32d-18s is the same board, but with firmware to output 18 channel serial on the 'ele' pad - compatible with Spektrum X-Plus transmitters. The packet format is 40 bytes of RS-232 data at 115200 baud, 8 bits, no parity, 2 stop bits, LSB first with a 22ms frame rate:
ByteData
10xFE first start byte
20x02 second start byte
3Checksum - sum of other 19 bytes cast to 1 byte (8 bit)
4Signal quality - 1st bit (MSB) 1=new data, 0='hold' data/signal not validated; next 2 bits not used; last 5 bits (LSB) = RSSI (31 max, 0=no signal/timeout)
5-22Payload - 7 channels, 2 bytes per channel - 1st 3 bits not used, next 3 bits = channel number, last 10 bits = channel position

Please see note above about DSMX support


Rx33 DSM2/DSMX Micro Receiver with 2A ESC (1mm JST-SH)

Rx33 is a DSM/DSMX2 compatible 6 channel micro receiver with JST-SH connectors. Channels 1-4 (Throttle, Aileron, Elevator, Rudder) have connectors, channels 5 and 6 (Gear, Aux) are available as pads on the circuit board. There is also an on-board 2A brushed ESC with motor connection via circuit board pads. An external ESC may be connected to channel 1 (throttle signal).

Rx33
Size:15.7 x 13.3 x 8 mm
Weight:0.65 gm

Yes, the weight really is 0.65gm with connectors.

Suitable 1mm pin space JST-SH connectors are available here. If the on-board ESC is used, power should be applied via the PCB pads as JST-SH sockets are not good for 2A - a suitable 'UM' battery lead is available here. The 'UM' / JST-SH adaper lead is useful for powering the receiver via a JST-SH socket when used in a glider.

View the Rx33 user instructions.

Please see note above about DSMX support


Rx34d DSM2/DSMX Micro Receiver with Twin 2A ESC (1.25mm Molex)

Rx34d is a DSM2/DSMX compatible micro receiver, for 4-5 servos and 1-2 motors, with Molex PicoBlade connectors - compatible with servos and ESC designed to fit Futaba micro, Walkera and other receivers that use the 1.25mm pin space connectors. Channels 1-4 (Throttle, Aileron, Elevator, Rudder) have connectors, channel 6 (Aux) is available via pads on the circuit board. There are also two on-board 2A brushed ESC with motor connection via circuit board pads. Differential steering is available by mixing rudder or aileron into the ESC channels. External ESC may be connected and make use of the differential mixing.

Rx34d
Size:16.5 x 11.7 x 8 mm
Weight:0.68 gm

Suitable 1.25mm pin space connectors are available here. View the Rx34d user instructions.

Please see note above about DSMX support


Rx35d DSM2/DSMX Micro Receiver with 2 x 2A ESC (1.5mm JST-ZH)

Rx35d is a DSM2 and DSMX compatible 6 channel micro receiver with JST-ZH connectors and 2 x 2A brushed ESC. Channels 1-4 (Throttle, Aileron, Elevator, Rudder) have connectors, channels 5 and 6 (Gear, Aux) are available as pads on the circuit board. Motor connections to both ESC are via circuit board pads and rudder or aileron can be mixed in for differential steering. External ESC, with optional ail/rud mix, may be connected to both throttle channels.

Rx35
Size:17.0 x 12.1 x 8 mm
Weight:0.71 gm

Compatible JST-ZH connectors are available.

The Rx35d is on the left of the image. The receiver on the right is a bare board without connectors, weighing 0.35gm. View the Rx35d user instructions.

Please see note above about DSMX support


Rx36 DSM2/DSMX Micro Receiver with 2A ESC

Rx36 is a DSM2/DSMX compatible 6 channel micro receiver with standard 0.1" (2.54mm) pitch connectors. Channels 1-4 (Throttle, Aileron, Elevator, Rudder) have connectors, channels 5 and 6 (Gear, Aux) are available as pads on the circuit board. There is also an on-board 2A brushed ESC with motor connection via circuit board pads. An external ESC may be connected to channel 1 (throttle signal).

Rx36 Horizontal Connectors
Size:11.6 x 26.3 x 10 mm
Weight:1.3 gm

Rx36 Vertical Connectors
11.6 x 17.8 x 8 mm
0.75 gm

Rx36 No Connectors
11.6 x 17.8 x 2 mm
0.38 gm

The Rx36 with horizontal connectors is on the left of the image; with vertical connectors is in the centre of the image and as a bare-board with no connectors is on the right of the image. Download the Rx36 user instructions.

Please see note above about DSMX support


Rx37 DSM2/DSMX 7 Chan Micro Receiver

Rx37-F is a DSM2/DSMX compatible 7 servo micro receiver for operation up to 10V and with twin on-board 2A ESC. The rudder or aileron channels may be mixed into throttle for differential thrust steering. All servo channels and both ESC outputs are available via pads on the circuit board.

Rx37 is a Rx37-F without the on-board ESC FETs. This saves a small amount of weight and is intended for serious F3P flyers.

Rx37
Size:14.1 x 15 x 2 mm
Weight:0.31 gm

Rx37-F
14.1 x 15 x 2 mm
0.33 gm

View the Rx37 v3.4.4 user instructions.

Please see note above about DSMX support


Rx27-H DSM2 Micro 6 Channel Receiver

Rx27 is a DSM2 compatible 6 channel micro receiver with standard 0.1" (2.54mm) pitch connectors and greater range than the Rx36. Channels 1-5 have connectors and channel 6 is available at the opposite end of the circuit board; a connector may be fitted.

Rx27
Size:29.0 x 14.5 x 11 mm
Weight:2.1 gm

All Rx27 stocked by Micron have version 2.x firmware; this supports a fail-safe facility on all channels. The channel setting at bind-time is remembered and servos are moved to this fail-safe position if the transmit signal is lost for more than 1 second. Full details are show in the Rx27 instructions.

The Rx27 available from stock is in the centre of the image; the other variants, with channel 6 connector and with extended aerial, are available to special order (please contact us for details).



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