
U105 · M5Stack

Unit DDS is a signal source Unit. It uses the AD9833 programmable waveform generator + STM32F0 control scheme. It provides an I2C communication interface (addr: 0x31) and operates by configuring registers in practical use. It allows easy control of the signal source to output various waveforms (sine wave, triangle wave, square wave output, sawtooth wave, signal output amplitude 0-0.6V), and to adjust frequency and phase. It also supports sleep strategies to further reduce power consumption… (M5Stack U105)
| Part number | U105 |
|---|---|
| Manufacturer | M5Stack |
| Category | Interface & Expansion › Signal Conditioning & RC |
| Pins | 4 |
| Voltage (max) | 600 mV |
DDS Unit (AD9833) pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | SCL | input | |
| 2 | SDA | bidirectional | |
| 3 | 5V | power | |
| 4 | GND | ground |
Schematic symbol and footprint
Schematic symbol
Footprint: Grove HY2.0 4-pin through-hole, 2.0 mm pitch — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.