Micron MR001d DSM2/DSMX Receiver for Land-Based Vehicles


Micron MR001d 2.4GHz DSM2/DSMX Receiver

MR001d is a small (30 x 18 x 11mm) DSM2/DSMX compatible receiver with 11 servo and on/off outputs. 7 outputs are via 'standard' 0.1 inch pitch pins at the front of the receiver that take JR/Hitec/Futaba connectors and 4 outputs are via an optional JST-SH connector at the rear (aerial end).

MR001d is suitable for use in live-steam and large battery electric locos. It can drive speed controllers, servos and LEDs (auto-directional lights and manually switched from the transmitter). The dimensions allow it to fit easily into many 32/45mm steam or diesel locomotives.

The voltage range is 3.5V to 8.4V so is best powered from a 4 or 5 cell NiMH battery for live-steam or from the 5V BEC speed controller output for battery electric locos. If you need to power from a single LiPo cell, a 5V or 6V booster may be used.

MR001d is compatible with all Micron model rail transmitters, and Spektrum compatible stick-type aicraft transmitters (e.g. DX6). Selecta is supported for use with Tx22 and Tx24 type transmitters. Selecta is disabled by default but easily enabled using the supplied jumper plug. MR001d must be bound to a transmitter before use and will automatically enter bind mode if a previously bound transmitter signal is not found within 5 seconds of switch on. A jumper plug placed across signal pins 5 & 7 will force MR001d into bind mode immediately after switch-on. Auto bind may be disabled if required.

All MR001d outputs can be configured for servo or 0V/3.3V switched, the standard configuration provides 5 servo outputs and 2 directional LED outputs on the JR connector pins (P1 to P7) and momentary plus latching switched outputs on the optional JST-SH connector (P8 to P11) (other configurations of servo and switched outputs can be provided to special order).

The current firmware is 1.1.1 and the current programming table is 1.1. See Version Info for other versions.

MR001d has 11 outputs:

  • P1..P7: 7 x JR style pin sets at the front
  • P8..P11, 0V, 3.3V: JST-SH 6 pin socket at rear
Each output can be configured for servo or on/off switched. The pre-loaded configurations are shown below. Unless otherwise specified when the receiver was ordered, config 1 is enabled by default. The other loaded configurations can be selected using a power-on jumper change or `by programming.

Configurations

This configuration table is for firmware version 1.1. For other versions, refer to mrxxx_version.

The pre-loaded configurations are shown below. Unless otherwise specified when the receiver was ordered, config 1 is enabled by default. The other loaded configurations can be selected using a power-on configuration change or by programming.

Port 1: Centre-off throttle, no Selecta 2: MyLocoSound triggers on P3-P5 (Tx22) 3: MyLocoSound triggers on P3-P5 (Tx20)
H1 Centre-Off ch1 Centre-Off ch1 Centre-Off ch1
P1 Throttle servo or ESC on H1 Throttle servo or ESC on H1 Throttle servo or ESC on H1
P2 Servo on ch2 Servo on ch7 Servo on ch2
P3 Servo on ch3 Momentary on ch3, low 0V Momentary on ch2, low 0V
P4 Servo on ch4 Momentary on ch3, high 0V Momentary on ch4, low 0V
P5 Servo on ch5 Momentary on ch5, low 0V Momentary on ch5, low 0V
P6 Forward Light on H1 (LED2) Forward Light on H1 (LED2) Forward Light on H1 (LED2)
P7 Reverse Light on H1 Reverse Light on H1 Reverse Light on H1
P8 Momentary on ch3, low 3.3V Momentary on ch3, low 3.3V Momentary on ch3, low 3.3V
P9 Momentary on ch3, high 3.3V Momentary on ch3, high 3.3V Momentary on ch3, high 3.3V
P10 Latch on ch3, start 0V, toggle low Latch on ch3, start 0V, toggle low Latch on ch3, start 0V, toggle low
P11 Latch on ch3, start 0V, toggle high Latch on ch3, start 0V, toggle high Latch on ch3, start 0V, toggle high
LED2 P6P6P6
Selecta Disabled Enabled Disabled
LVC Enabled Enabled Enabled
Sleep time 1 hour 1 hour 1 hour
Cruise Enabled Enabled Enabled

Other configurations are available to special order or you can configure yourself by programming (v1.1).

The firmware version is shown on the receiver label, either as a letter (A, B, etc.) or as 2 digits separated by '.' - e.g. 1.4.

MR001 Hardware

VersionRelease Date 
MR001a, MR001b2018-01-01First release
MR001c2022-09-01Combined 'a' and 'b' functionality
MR001d2024-02-09New hardware base

MR001 Firmware

Firmware VersionIdentRelease Date User Manual ConfigurationProgramming 
1.1 A 2024-02-09 mr001-1.1-info mr001-1.1-config mr001-1.1-progtable First release of MR001d
1.1.1 A1 2024-06-31 mr001-1.1-info mr001-1.1-config mr001-1.1-progtable Bug fix to servo slow
1.3 B TBD mr001-1.2-info mr001-1.2-config mr001-1.2-progtable Support multiple ESC (hbridge or servo). Add servo offset, toggle and differential mix functions

Weight: 4.5gm, dimensions: 30mm x 18mm x 11mm.

From: £22.00

Price: from £22.00


JR Plug & 2 Wire Lead For MR00x Receiver (pair)

A pair of 150mm lead-out wires for front & rear lights (P6 & P7) on MR00x receivers.

See the MR001 ESC & Lighting document for LED connection information.

£ 1.45

JR Plug & 3 Wire Lead For Sound Triggers From MR00x Receiver

A JR plug and 3 x 150mm lead-out wires with series 4k7 ohm resistors for connecting MyLocoSound triggers to P3, P4 & P5 on MR00x receivers.

£ 1.95