Rx65-5-3A2 Instructions (v611)


Top connections

Bottom connections




Setting Details

Rx65-5 'Car' setup for use with DX3 transmitter

Red wire positive (+)
Black wire negative (-)

Battery 3-18v (if no BEC)
Observe polarities
H1 output

Motor 1
Ch1 Forward/reverse

Integrated forward/reverse ESC for brushed motors
H1/H2 used as a pair; Center off
50% mix
H2 output

Motor 2
Ch2 Steering

Integrated forward/reverse ESC for brushed motors
H1/H2 used as a pair; Center off
50% mix
F1 output 'A'
Ch3 Driving lights
Start disconnected, toggle when channel is Low
Latching action, LED2 enabled
F2 output 'B'
Ch1 Reverse light
Disconnected when off, 0v when on
Auto activate
F3 output 'C'
Ch1 Brake light
Disconnected when off, 0v when on
Auto activate
F4 output 'D'
Ch3 Flasher
Disconnected when off, 0v when on
Latching action ('D' is controlled by P5)
P1 Servo Ch1
P2 Servo Ch2 Steering
P3 Left indicator Ch3 left <1s on, Ch2 steering/auto cancel
P4 Right indicator Ch3 right <1s on, Ch2 steering/auto cancel
(P3/P4) Hazards (Left+Right) Ch3 left >2s toggle on/off
P5 Flasher (0.5s) Ch3 right >2s toggle on/off (P5 controls 'D')
P6 Servo Ch3
P7 Led Ch3 toggle when low, latching action
L input

Monitors single cell lipo when used with a voltage booster
Enabled Ch1 to center position (off)
Low Voltage Cutoff (LVC)
Enabled Led 5-flash if triggered
Failsafe Enabled Motor cuts on signal loss
Inactivity Sleep Enabled Invoked after 1hour, Switch Rx off and on to restart


Motor (H1)

Motor (H1 & H2)

Led (F1 'A')

Led (P2)

Servo (P7)

Lipo booster (L)

'H' outputs are intended for brushed motors. H1 and H2 have different settings and are intended to be used independantly. H1 is on the main receiver board which has the green led. H2 is on the simpler daughter board marked 'A3'. H1 and H2 both have 3A ratings. This is a maximum 'worst case' value usually measured by connecting a fully charged battery direct to a stalled motor.

'P' outputs are either 3.5v or 0v (ground). Leds need resistors to limit current to no more than 20mA. High brightness leds allow a lower current which is preferred (eg: 2-5mA). Google will reveal how to select resistor values but 220-470ohms will be safe starting values.

'F' outputs are buffered with a fet. They are 0v (ground) when on and floating (disconnected) when off. Up to 2A is possible but lower currents are much better. Current-limiting resistors are required for leds. The load is normally connected to positive and the F output provides a path to ground to switch it on. F outputs are marked with letters on the receiver (A, B, C and D). The are programmed as P outputs (P13, P14, P15 and P5). eg: F1 = A = P13.

The 'L' pad monitors a single cell lipo when used with a voltage booster. This allows the motor to be powered with a boosted voltage and benefit from the convenience of a single lipo. The receiver will cut power to the motor when the voltage falls to 3v (LVC). The L pad is not intended for use when powering a receiver direct from a single lipo.


Bind once:
1. Switch Rx on and wait ~20s until led flickers fast.
2. Switch Tx on in bind mode.
3. Rx led should flash slowly; wait for it to go solid.
Change distance between Tx/Rx if binding does not work.

4. LED:
Led On = perfect reception (real-time indicator).
1 flash = Scanning (~2sec between flashes; no signal or not bound if never stops).
5 flash = LVC/Brownout (voltage went too low; check battery/motor load).

The following changes can be made by simply shorting two pads together (eg: with a paperclip):
1. Perform a 'Hard reset' (factory reset).
2. Change motor control between 'low off' and 'center off'.
3. Enable/disable LVC (eg: when using Nicads, NiHMs, LiFe cells).
4. Enable/disable Selecta.
5. Enable/disable Cruise Control/Failsafe.
'Paperclip' changes

This receiver has many other options that are described on the features page.
These are changed using a technique called 'programming': v611.

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