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can you connect this attiny85 to a fm receiver rda5807

@copilot can you connect this attiny85 to a fm receiver rda5807
2y
To connect an ATtiny85 to an FM receiver module like the RDA5807M, we'll first need to decide on the communication protocol to use. Typically, the RDA5807M supports I²C communication, which is perfect for interfacing with the ATtiny85 since it's capable of I²C communication through its USI (Universal Serial Interface).
Assumptions
  • The ATtiny85 will communicate with the RDA5807M using I²C.
  • A basic connection for power and ground, as well as I²C communication lines, is required.
  • The operating voltage for both devices is compatible (usually 3.3V or 5V, but I'll assume 5V for the ATtiny85V-10PU).
  • You have configured the ATtiny85 to use its USI as an I²C master.
Connection Steps
  1. Power Connections:
    • Connect VCC (P:8) of the ATtiny85 to the VCC (usually pin 1) of the RDA5807M. This is the positive supply voltage.
    • Connect GND (P:4) of the ATtiny85 to the GND (usually pin 8 or as per RDA5807M pinout) of the RDA5807M. This is the ground connection.
  2. I²C Communication Lines:
    • The ATtiny85 doesn't have dedicated I²C pins but uses its General Purpose I/O pins with Universal Serial Interface (USI) for I²C communication. Pins PB0 (P:5) and PB2 (P:7) can serve as SDA (Data Line) and SCL (Clock Line) respectively, after proper configuration in software.
    • Connect PB0 (P:5) of the ATtiny85 to the SDA pin of the RDA5807M. This is the I²C Data line.
    • Connect PB2 (P:7) of the ATtiny85 to the SCL pin of the RDA5807M. This is the I²C Clock line.
Additional Notes
  • Ensure that both the ATtiny85 and the RDA5807M are configured to operate at the same logic level (e.g., 5V or 3.3V) for compatibility.
  • You might need pull-up resistors on both the SDA and SCL lines, typically in the range of 4.7kΩ to 10kΩ, connected to VCC. This is a common requirement for I²C communication.
  • Remember to program the ATtiny85 with the appropriate firmware to initialize I²C communication and control the RDA5807M.
Example Connection List
  • Connect P:8 to RDA5807M VCC.
  • Connect P:4 to RDA5807M GND.
  • Connect P:5 to RDA5807M SDA (with a 4.7kΩ to 10kΩ pull-up resistor to VCC recommended).
  • Connect P:7 to RDA5807M SCL (with a 4.7kΩ to 10kΩ pull-up resistor to VCC recommended).
If any of the assumptions are incorrect, or you need further details, please let me know!
2y
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2
AREF/PB0
PB1
XTAL1/PB3
~RESET~/PB5
VCC
XTAL2/PB4
GND
PB2


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    A common return path for electric current. Commonly known as ground.
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    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
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ATTINY85V-10PU

ATTINY85V-10PU thumbnail
AVR AVR® ATtiny, Functional Safety (FuSa) Microcontroller IC 8-Bit 10MHz 8KB (4K x 16) FLASH 8-PDIP #CommonPartsLibrary #Microcontroller #Attiny85

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Microcontroller

Microchip

ATTINY85V-10PU

U

Pricing & Availability

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