Multi-Function Microphone for the ICOM IC-900/901
This repo holds the design data for the HM-133 Adapter (wired-remote), the IC-901 Remote Controller Adapter (RCA), and the MFmic adapter (used in the IC-900 B-Unit).
The design data is subdivided by MCU, Then subdivided into HW and SW. At the moment, there are two MCUs: an SiLabs C8051-F531 (DTMF Adapter) and an ATTINY816 (RCA). The RCA features several PCBs but only one of those contains the MCU. The following lists the high-level Design Item List:
HM133:
One (1) PCB and one (1) SW source package. There is also an OpenSCAD 3D-printed housing included in the hardware section.
RCA Hardware:
IC901_SRAM100: holds the ATTINY816
IC901_KEYMUC400: holds the key-matrix muxing circuits
IC901_SRAM200: The 32K SRAM adapter PCB
IC901_LED300: A small, 7-seg LED display PCB for displaying the SRAM bank setting
RCA Software:
SW_MFmic_IC901.zip
https://ke0ff.github.io/mfmic/ holds user field support documentation.