Summary of PIC16F84 MIDI 32-CHANNEL DECODER CIRCUIT
This project describes a 32-channel MIDI decoder circuit using a PIC16F84 microcontroller to automate devices like relays and electromagnets for musical instruments or lighting control. MIDI data is received and isolated via a 6N136 optocoupler. Outputs from PortB drive four 74LS574 latches, controlled by PortA pins, feeding into a ULN2803 driver capable of handling loads up to 2A. The circuit operates on 5V regulated by a 7805 from a 9-24V supply, suitable for various relay types. Full schematics, source code in PIC assembly, and PCB layouts are available.
Parts used in the PIC16F84 32-Outputs MIDI Decoder:
- PIC16F84 microcontroller
- 6N136 optocoupler
- Four 74LS574 latch ICs
- ULN2803 Darlington transistor array
- 7805 voltage regulator
- 9-24V DC power supply
- Connectors (e.g., CN7)
- Relay or solenoid loads (external)
Midi 32-channel decoder circuit made with PIC16F84 microcontroller pic çoklanıp with 74LS574 outputs given the output circuit uln2803 12v dc and dc 5v (integrated supply) is working with a list of materials and source code are printed circuit boards…. Electronics Projects, PIC16F84 Midi 32-channel decoder circuit “microchip projects, microcontroller projects, pic assembly example, pic16f84 projects,
Midi 32-channel decoder circuit made with PIC16F84 microcontroller pic çoklanıp with 74LS574 outputs given the output circuit uln2803 12v dc and dc 5v (integrated supply) is working with a list of materials and source code are printed circuit boards. PIC assembly prepared with the software.
PIC16F84 32-OUTPUTS MIDI DECODER
Here is the description a 32 outputs MIDI able to switch relays, electromagnetics devices… in order to automate a mechanical musical instrument, or command lights…
Data from a musical instrument equipped with a MIDI output or sound card (MIDI) are analyzed by the software on the PIC 16F84. The IC10 optocoupler (6N136) provides galvanic isolation. Outputs PortB form a parallel 8 bit data bus to 4 74LS574 (8 latches). The PortA 1,2,3,4 outputs control the storage of these 74LS574 Buffers power ULN2803 can control loads up to 2A.
The 5V power supply is built around a 7805 controller. CN7 connector receives power from 9 to 24V depending on the type of relay or solenoid.
Source: victorseraphine.com PIC16F84 pic assembly source code Midi 32-channel decoder circuit schematic pcb alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-1571.zip
