Arduino library for TEXAS INSTRUMENTS CC2500.
I made it with reference to this.
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2.00mm pitch External Antena
This module requires an external antenna for 2.4GHz.
Pin out is here.
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1.27mm pitch PCB Antena
Pin out is here.
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Pitch conversion PCB
I use this.
You can convert from 1.27mm to 2.54mm or from 2mm to 2.54mm.
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Changed legacy SPI communication to SPI communication with transactions.
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Added CS pin parameters to the constructor.
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Added getChipPart function.
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Added getChipVersion function.
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Added resetDevice function.
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Changed some initial parameters.
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Changed example code.
| CC2500 | UNO | MEGA | ESP8266 | |
|---|---|---|---|---|
| GND | -- | GND | GND | GND |
| CSN | -- | D10(*2) | D10(*2) | IO15 |
| MISO | -- | D12 | D50 | IO12 |
| SCLK | -- | D13(*2) | D52(*2) | IO14 |
| MOSI | -- | D11(*2) | D51(*2) | IO13 |
| VCC | -- | 3.3V(*1) | 3.3V | 3.3V |
(*1)
UNO's 3.3V output can only supply 50mA.
In addition, the output current capacity of UNO-compatible devices is smaller than that of official products.
So this module may not work normally when supplied from the on-board 3v3.
(*2)
CC2500 is not 5V tolerant.
You need level shift from 5V to 3.3V.
I used this for a level shift.
Basically, communication between applications with different register values is not guaranteed.
These settings may differ.
- Base frequency and channel spacing frequency
- Packet format configuration
- Manchester encoding configuration
- Wireless modulation method
- The data rate used when transmitting
- The data rate expected in receive