Article
Memory Expansion for Futaba R/C Transmitters
In the model buildingworld a lot of transmitters are used with a built-in microprocessor. This processor occupies itself with carrying out, among other things, mixing functions, null point control of the servo, reversal of the servo, etc. This provides two significant advantages. On the one hand there is no need to purchase expensive analogue mixers again, because all of that is now implemented in software. On the other hand, you can use different settings for different models, because the various settings can be stored in non-volatile memory.
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
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PCB
Component list
Resistors:
R1 = 3kOhm 3
Capacitors:
C1 = 100nF
Semiconductors:
IC1 = 24C16
Miscellaneous:
K1 = 7-way connector (2 mm lead pitch!), e.g., Farnell # 672-348.
R1 = 3kOhm 3
Capacitors:
C1 = 100nF
Semiconductors:
IC1 = 24C16
Miscellaneous:
K1 = 7-way connector (2 mm lead pitch!), e.g., Farnell # 672-348.
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