New FPGA card

• 2 rows of 40 pins to give 10 peripheral slots
• optional 1 row of 16 pins for host interface card
• USB Serial interface with CP2102
• easy to cut serial traces and header for raw serial
• optional host RTS line for board reset
• smaller 98x48mm form factor
• SPI configuration flash.
• SPI flash is seen as a peripheral for new code download
• 5 Volt input, onboard 3.3 and 1.2 volt regulators
• 40/50 MHz crystal
• new Verilog serial host interface (first using existing FPGA card)

Dual voltage/current controlled motor controller

• See https://www.ebay.com/itm/XL4015-5A-Step-Down-Buck-Converter-Module-DC-DC-Power-Supply-LED-Lithium-Charger/263587316867?hash=item3d5f074483:g:4SQAAOSw2hhcgHTnItem
• XL4015. PWM for voltage control. Cycle stealing for current control.
• Use digital pots to set voltage/current. https://demandperipherals.com/cards/qpot.html
• Use AVR to set H-bridge direction and monitor voltage/current
• Low cost NFETs for H-bridge can have high gate capacitance
• Design to work with 7474 DPI circuit or direct SPI
• No new Verilog
• This might be a big seller

9-axis IMU card

• BNO055 based so we do not do Kalman filters
• We could buy/mount https://www.adafruit.com/product/4646 if needed

Qwiic interface card

• FPGA to Qwiic interface with multiple Qwiic connectors
• No new Verilog.
• Maybe Linux drivers for several popular Qwiic cards

Grove interface card

• FPGA to Grove interface with multiple Grove connectors
• No new Verilog.
• Maybe Linux drivers for several popular Grove cards

Programmable power supply

• XL4015 based design as above
• AVR and quad digital pot to control.
• ZXCT1107 for high side current monitor
• No new Verilog

RFID reader card

• PN532 based
• Similar to https://www.adafruit.com/product/364
• “half size” card. 98x48mm

Waveform generator card

• Based on AD9833 or similar
• Similar to Mikroe-3309
• Probably no new Verilog
• Simple Linux API

* Frequency counter card (prescaler, into GHz range) output so low we can count it. * A GPS receiver card (for absolute time sync and accurate frequency generation) * Ref frequency generator from GPS signal, 10MHz output for test equipment (multiple outputs to sync many measurement devices) * Galvanic insulated Volt meter (low freq) (measure volt/current in LAB situations) safe for ground loops etc * Galvanic insulated Thermocouple interface * 4-20 mA interface somehow integrate sensors into fpga/linux backend * I2C ground loop break (level conversion and always safe) * 1 board with some switches, a few LEDS and a LCD display, nicely done, visual and size compatible to rest of platform * CAN BUS system integration * ACS71240 Integrated Current Sensor * Talking to chargers and electric cars : https://en.wikipedia.org/wiki/ISO_15118 some interface for this * Current controller/generator (starting at low current) upto 0.5 amp, used to power LED lighting applications (panels) * Sub GHz tranceiver Si4464/63/61/60 used in smart metering, allows many protocols (also known to me from balloon telemetry application, ranging 150 km without special antenna (line of site)) Can be used in remote control and logging of factory and sensors in the field

Analog CPLD card

• SLG46826 GreenPak chip with SPI
• May need new Verilog
• Linux API needs definition

Weather sensor card

• Temperature, Humidity, Pressure, Light, UV Light
• No new Verilog if I2C sensors

Brushless DC motor controller (?)

• Based on the ATA6843 or similar

Silent stepper motor controller with all the trimmings TMC2226 http://www.farnell.com/datasheets/3119148.pdf https://nl.farnell.com/trinamic/tmc2226-bob/breakout-board-stepper-motor-driver/dp/3439212?st=tmc2226

DCC Model Railroad controller

• Based on one channel of the current H-bridge
• New Verilog required but a fairly simple design

Battery management card (?)

• Coulomb counter, voltage per cell
• Balancing charger
• Remote on/off
• Multiple output connectors

SD Card Reader (?)

• One bit SPI interface

Configurable voltage regulator card (?)

• 3.3/3.7/5/6 volt selectable via jumper

Serial ports

• Quad low speed serial output
• Quad low speed serial input
• Dual low speed serial output with flow control
• Dual low speed serial input with flow control
• Dual serial input/output without flow control
• Single low speed serial port with flow control

Microstepping stepper motor controller

• Uses existing dual H-bridge or quad open-drain driver
• Sine/cosine lookup table
• Phase accumulator implementation (?)

Broadcast ultrasonic ping

• Current ping peripheral does one of eight sensors at a time
• New peripherals pings all sensors simultaneously.
• 8X improvement in response time

Logic analyzer (?)

• Use all input pins as part of a logic analyzer
• Limited to 20 MHz sampling rate
• Configurable trigger value, hold-off, and pre-trigger.
• Output to GTKWave or Sigrok