PicooZ receiver Iz3 - Didel.com

CH-1092 Belmont, Switzerland
Tel +41 21 728-6156, Fax 728-6157
Email info@didel.com, www.didel.com
PicooZ receiver Iz3
www.didel.com//Ir/Iz3.pdf
The Iz3 is a 2-channel receiver that can be
used to control many kinds of flying,
swimming, or rolling objects. etc
The receiver is 10x8mm and the weight is
only 0.33grams. Two magnets make it
Bahoma 5mm compatible. The thrust
channel is unidirectionnal, compatible with a
>4 Ohm propeller motor. The bidirectionnal
channels can control a >30 Ohm motor or
magnetic actuator. 1mm connectors can be
used (see our connector kit)
The third channel is not easy to control from
the PicooZ controller. For a slow moving
blimp, this channel is perfect for the vertical
control.
If you prefer a larger circuit, Didel has a
compatible Ibz3 0.8 gram receiver that does
not need ultra-fine tools
Other versions: Iz2 for e.g. a simple plane.
Hoovercraft 2.2 grams submarine Blimp
What do you get with the IZ3
The Iz3 is a PCB with all its electronic
components, fully tested.
Connect a 5mm Bahoma Lipo, the led blinks
and stay on until you power the PicooZ.
Channel selection is made at power-up.
We provide a Bapi piece if you do not have a
Bahoma Lipo, so you can do a test cable
toward a 3 to 5V battery pack.
Iz3 powered by a 30 mAh Plantraco Lipo
Iz3 powered by 2 wires and a Bami-B
adapter

We provide a bicolor LED to check the
outputs. You get also five 1.25mm connectors.
Use one male plug for soldering the test LED.
You do not need to solder the female
connectors on the receiver yet. One channel
will be tested at a time, with the pins of the
LED tester inclined in the metallized holes of
the receiver outputs.
Power both the receiver and transmitter (any
order). Check with the bicolor LED, you get a
signal that depends on the corresponding stick
position. The LED intensity is not proportional
to the current, but it gives a good idea.
Specifications
Module size 10x8mm, 14x8mm with the wings
Weight 0.37g without connectors (add 0.22g for 2 connector pairs)
Voltage: 2.5 to 5.5 Volts Current (inactive outputs) 0.2mA
Propeller transistor: IRM2502, RdsOn 0.2Ohm @ 3V, 24 Ohm pager motor.
Limitations of the transmitter
We have to live with the limitations of the PicooZ transmitter. Transmit and look at the
test LED to fully understand the following. See http://www.didel.com/Ir/IrControl.pdf for
details.
The thrust stick is encoded as 15 values, 0 to14 assigned in a non linear way to 0-
100% of PWM on the propeller transistor.
The yaw stick is encoded as 7 values: you can have 3 turning radius right and 3 left,
that’s all! The trim buttons controls a second PWM value by 1/4 th of one step. This
can be useful for the vertical control of a blimp.
Multiple transmitters
If two or three transmitters have to be used simultaneously, they must have a
different channels. Power a first transmitter (any channel) and the corresponding
receiver. Then switch off that transmitter but not the receiver. Power the next pair,
etc, so each receiver learns its transmitter. All transmitters can then be powered.