Infrared Remote Contr. Stepped Attenuator for Replacing RC Motor Volume Contr.Alps
I don't like motor potentiometers, especially if there are cheap and small attenuators but big motors.
But big blue alps like ebay item No 350430125063 or
Alps Motorpotentiometer - hifituning24.de
only a bit better.
Here an overview of various additional examples
A: RC Motor Analog-Potis
1) Velleman K8022 PASSIV Preamp with remote control
associated RC transmitter:
2) RCLL, Remote Controlled Line Level Volume Control
Audioplex RCLL-1 Remote Controlled Line Level VC
3) VolControl, Volume/attenuator control board
Dantimax (elektronik) - Control_boards
4) MK161 - IR 2 Channel Remote Receiver Kit
MK161 - IR 2 Channel Remote Receiver Kit - Ramsey Electronics
5) TentLabs Volume control
6) MV-04 motorize remote volume control
7) Remote control audio kit
Dantimax - Remote control audio kits
B. Remote Controlled Switched Resistors by Relay
1) The remote control paratactic volume control
2) Audio Volume Relay Attenuator with IR Control
Audio Volume Relay Attenuator with IR Control
3) Remote volume control board, using relay - Halcro also use relay on their DA10 pre amp
For me a better option are semiconductor versions without mechanical devices for the attenuation like this:
Digital Potentiometers and Capacitors (ISL22317)
Digital Volume Control
Volume Control - Volume Controls (CS3318)
2-Channel 78 dB Audio Attenuator
LM1972 - Micro-Pot 2-Channel 78 dB Audio Attenuator with Mute
Stereo Audio Volume Control (PGA2310-2311-2320-4311)
Audio - Volume Control - PGA2310 - TI.com
Electronic Audio Attenuator dc controlled (MC3340)
MAS9116 - Stereo Digital Volume Control
MAS9116 pdf, MAS9116 description, MAS9116 datasheets, MAS9116 view ::: ALLDATASHEET :::
Dual-Channel Digital Volume Control with CMOS switch 4066
Digital controlled stereo audio processor TDA7313 (ST)
Maxim DS8102 - the new volume control chip
DS8102 Dual Delta-Sigma Modulator and Encoder - Overview
DIY: high end DAC and digital volume control | Flickr - Photo Sharing!
TDA7439 (Linn Kolektor) THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR (ST)
Who knows URLs, where I can order Kits (similar to Velleman) where such IC's (ore discrete glue logic stuff) is in use?
Examples, that I have found, are this:
1) Remote Controlled Stepped Attenuator
Welborne Labs Remote Controlled Attenuator
2) RC-16 Remote Volume Control (looks like that one from Cyrus III and Cyrus IIIi / Cyrus 3i)
RC-16 Remote Volume Control - Oxmoor Professional Audio Products
But there are certainly much more offers.
Who can post more URL's ??
Remote controlled Attenuators - Basics:
rangkaian digital volume
H-Bridge DC Motor Schematic - Robot Room
Hi-Fi Preamp - Analogue Research
The VolControl, Volume/attenuator control board (Number 3)
and TentLabs Volume control (Number 5)
must be in category B, because there are no potentiometer is in use; the device looks like a pot is an encoder (double rotary switch)
Alps | Passive Bauelemente | Widerstšnde | Trimmer, Potentiometer und Rheostate | Encoder |EC11B152420G
OMRON G6K SMD-Relais
this thing could be interesting to control a motorized potentiometer as ALPS or Panasonic Infrared Remote Decoder Module Power/Volume/light Contr | eBay
But I have difficulties to see how to use it to control a motor, any idea ?
Just connect 3 to 8 line decoder. The output will appear on one of the pins. Connect a reversible motor driver IC. For reverse direction, some other pin will go high.
I bought this one off eBay and it's junk: ALPS IR Remote Volume Control DIY Kit (100K)_Volume Control_Accessories Kit_Analog Metric Limited - DIY Audio Kit
The H-bridge is awful, it crowbars the rails until the MCU boots. The transistors are not saturated and the motor gets about 3.5V so it's ssslow.
I'm building a relay-based log attenuator with IR remote, as everything is multi-channel now.
There is bentaudio.com that you can look at.
BentAudio.com :: TAP
I think I found the easy solution. With this module L298N Dual Stepper Motor Driver Controller Board Module en vente sur eBay.fr (fin le 12-aoŻt-11 18:36:05 Paris) we can control motor rotary in both directions.
If I don't make mistake We have just to join :
D0 (PIN6) of IR controller to IN1 (PIN5) of Motor Controller
D1 (PIN5) of IR controller to IN2 (PIN7) of Motor Controller
ACT (PIN3) of IR controller to ENA (PIN6) of Motor Controller
Motor B+ PSU to VIN (PIN4)
5V PSU to +5V (PIN1) of IR controller and to +5V (PIN9) of Motor Controller
Ground to GND (PIN8) of IR controller and to GND (PIN8) of Motor Controller
Ground of 5V PSU and Ground of Motor B+ PSU
If we push on ">> Up" on remote control we have D0=5V, D1=0V and the polarity to have a rotation of the volume pot in direction to up volume
If we push on "<< Down" on remote control we have D0=0V, D1=5V and the polarity to have a rotation of the volume pot in direction to down volume
I have IR controller and Remote control, I will order Motor controller to finalise my project
The alps pot requires 5V and about 200 mA to run. It is best driven from two small change-over relays because if driving transistors are not driven to saturation the volt-drop is large and the motor will turn very slowly.
It is simple and cheap to do if you already have a remote controller with two outputs UP and DOWN
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