12 Bit ADC shield for Raspberry Pi [8-Channel 12 Bit]

Description:
The Pi does not include a hardware analog-to-digital converter, but an external ADC (such as the STM32F030) can be used, along with some SPI code in Python to read external analog devices. ADC is a common accessory for Raspberry Pi, Nowadays many cheap MCUs have built-in ADC, so we make this 8-channel ADC based on STM32F030, which is a cost-effective, low-power ARM Cortex M0 MCU. We breakouts 8 channels ADC from the MCU, and integrated 4 analog Grove connector so that you can also use analog Grove modules with it.
 
Features :
Operating Supply Voltage: 3.3V
ADC Resolution: 12 bit
Maximum Clock Frequency: 48 MHz
Program Memory Size: 16kB
Data RAM Size: 4 kB
Data Bus Width: 32 bit
Operating Temperature: -40～85℃
Communication Interfaces: I2C
I2C address: 0x04(default)
 
Specification:
CRC calculation unit
5-channel direct memory access(DMA) controller
Calendar RTC with alarm and periodic wakeup from Stop/Standby
Timers:
     Advanced-control timer
     General-purpose timers and Basic timers
     Independent and system watchdog timers
     SysTick timer
Real-time clock (RTC)
Serial wire debug (SWD)

Package Include:
1 x Raspberry Pi ADC Shield