STEM

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10 Items

AB Electronics Expander Pi

Real time Clock (RTC) with CR2032 battery holder.
8 channel 12 bit resolution analogue input (ADC)
2 channel 12 bit resolution digital to analogue output (DAC)
16 channel digital input / outputs

AB Electronics ADC Pi

Jumper selectable I2C addresses
8 x 17-bit 0 to 5V Single Ended Inputs
On-Board Programmable Gain Amplifier (PGA): Gains of 1, 2, 4 or 8
Based on the MCP3424 from Microchip Technologies Inc
Single Ended full-scale range of 5.0V

AB Electronics Servo PWM Pi Zero

The PCA9685 contains 5 I2C address selection pins
Output frequency is programmable from a typical 40Hz to 1000Hz
16-channel, 12-bit PWM controller for the Raspberry Pi

AB Electronics 1 Wire Pi Zero

Buffered 5V I2C port
External 5V power input for 1-Wire interface
I2C address selection via solder jumpers
1-Wire to I2C host interface with ESD protection diode
Stackable with other Raspberry Pi accessory boards

AB Electronics Serial Pi Plus

Control the Raspberry Pi over RS232 or connect to external serial accessories.
Stackable with other Raspberry Pi accessory boards.
RS232 Master Port.
Mounting holes for use with the AB Electronics UK mounting kits (sold separately)

AB Electronics IO Pi Plus

Based on the MCP23017 from Microchip Technologies Inc
Polarity Inversion register to configure the polarity of the input port data
External 5V Input with isolation solder jumper
Solder jumper selectable I2C addresses
Configurable interrupt output pins - Configurable as active-high, active-low or open-drain

AB Electronics Serial Pi Zero

Control the Raspberry Pi Zero over RS232 or connect to external serial accessories.
RS232 Master Port.
Mounting holes for use with the AB Electronics UK mounting kits (sold separately)
Stackable with other Raspberry Pi accessory boards.

AB Electronics RS485 Pi

Use the Raspberry Pi to control external RS-485 devices.
Mounting holes for use with the AB Electronics UK mounting kits (sold separately)
RS-485 Half Duplex Port.
Stackable with other Raspberry Pi accessory boards.
Up to 250 kbps transfer rate.

AB Electronics IO Pi Zero

Configurable interrupt source - Interrupt-on-change from configured register defaults or pin changes
Control via the Raspberry Pi I2C port
INTA and INTB can be configured to operate independently or together
Configurable interrupt output pins - Configurable as active-high, active-low or open-drain
Polarity Inversion register to configure the polarity of the input port data

AB Electronics 1 Wire Pi Plus

External 5V power input for 1-Wire interface.
Stackable with other Raspberry Pi accessory boards.
Buffered 5V I2C port.
1-Wire to I2C host interface with ESD protection diode.
2C address selection via solder jumpers.
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10 Items