@tableofcontents
ATTiny support for this library relys on the SpenceKonde ATTinyCore. Be sure to have added this core to the Arduino Boards Manager with this install guide
See the included rf24ping85 example for pin info and usage
@warning The ATTiny2313 is unsupported due to lack of sufficient memory resources
Some versions of Arduino IDE may require a patch to allow use of the full program space on ATTiny. See this resource for the ATTiny patch.
ATTiny board support initially added from jscrane/RF24
By tong67
+-\/-+
NC PB5 1|o |8 Vcc --- nRF24L01 VCC, pin2 --- LED --- 5V
nRF24L01 CE, pin3 --- PB3 2| |7 PB2 --- nRF24L01 SCK, pin5
nRF24L01 CSN, pin4 --- PB4 3| |6 PB1 --- nRF24L01 MOSI, pin6
nRF24L01 GND, pin1 --- GND 4| |5 PB0 --- nRF24L01 MISO, pin7
+----+
- Circuit idea from NerdRalph's 3 pin solution
- Original RC combination was 1K/100nF. 22K/10nF combination worked better.
- For best settletime delay value in RF24::csn() the timingSearch3pin.ino sketch can be used.
- This configuration is enabled when CE_PIN and CSN_PIN are equal, e.g. both 3
- Because CE is always high the power consumption is higher than for 5 pins solution
^^
+-\/-+ nRF24L01 CE, pin3 ------| //
PB5 1|o |8 Vcc --- nRF24L01 VCC, pin2 ------x----------x--|<|-- 5V
NC PB3 2| |7 PB2 --- nRF24L01 SCK, pin5 --|<|---x-[22k]--| LED
NC PB4 3| |6 PB1 --- nRF24L01 MOSI, pin6 1n4148 |
nRF24L01 GND, pin1 -x- GND 4| |5 PB0 --- nRF24L01 MISO, pin7 |
| +----+ |
|-----------------------------------------------||----x-- nRF24L01 CSN, pin4
10nF
- Schematic provided and successfully tested by Carmine Pastore
+-\/-+
nRF24L01 VCC, pin2 --- VCC 1|o |14 GND --- nRF24L01 GND, pin1
PB0 2| |13 AREF
PB1 3| |12 PA1
PB3 4| |11 PA2 --- nRF24L01 CE, pin3
PB2 5| |10 PA3 --- nRF24L01 CSN, pin4
PA7 6| |9 PA4 --- nRF24L01 SCK, pin5
nRF24L01 MISO, pin7 --- PA6 7| |8 PA5 --- nRF24L01 MOSI, pin6
+----+
+-\/-+
PA2 1|o |20 VCC --- nRF24L01 VCC, pin2
PD0 2| |19 PB7 --- nRF24L01 SCK, pin5
PD1 3| |18 PB6 --- nRF24L01 MOSI, pin6
PA1 4| |17 PB5 --- nRF24L01 MISO, pin7
PA0 5| |16 PB4 --- nRF24L01 CSN, pin4
PD2 6| |15 PB3 --- nRF24L01 CE, pin3
PD3 7| |14 PB2
PD4 8| |13 PB1
PD5 9| |12 PB0
nRF24L01 GND, pin1 --- GND 10| |11 PD6
+----+