Micropython ESP32/ESP8266 SPI library for the AD9850 synthesizer
TL'DR
# Import library
from ezeefix.ad9850 import SignalGen
# Default settings, works for both ESP8266 and ESP32
g = SignalGen()
g.set_frequency(40_000_000)
# esp32, spi 1 and alternative fqud/reset pin mapping
g = SignalGen(fqud_pin=18, reset_pin=19)
g.set_frequency(1_000_000)
# esp32, spi 2 and default fqud/reset pin mapping
g = SignalGen(spi_bus=2)
g.set_frequency(1_000)Default pin connections from ESP8266/ESP32 boards to AD9850
This library uses an SPI port and 2 additional pins (FQUD and RESET) to control the AD9850.
- GPIO04 -> FQUD
- GPIO05 -> RESET
- spi_bus = 1 (same pins on ESP2866 and ESP32)
- spi_bus = 2 (only available on ESP32)
AD9850 board from aliexpress
AD9850 serial mode programming
The board is set up to configure AD9850 in serial mode, allowing SPI programming
