projects
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projects [2021/01/21 10:37] edwin [CARDS] |
projects [2021/01/21 11:44] (current) edwin |
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| * Probably no new Verilog | * Probably no new Verilog | ||
| * Simple Linux API | * Simple Linux API | ||
| - | |||
| Frequency counter card | Frequency counter card | ||
| - | * (prescaler, into GHz range) output so low we can count it. | + | * (prescaler, into GHz range) output so low we can count it. |
| * Uses the count4 Verilog peripheral or a derivative of it | * Uses the count4 Verilog peripheral or a derivative of it | ||
| A GPS receiver card (for absolute time sync and accurate frequency generation) | A GPS receiver card (for absolute time sync and accurate frequency generation) | ||
| - | * May be based on, or just carrier card of, existing GPS/GNSS receivers | + | * May be based on, or just carrier card of, existing GPS/GNSS receivers, yes |
| * See the current GPS interface in dpdeaemon for the existing API | * See the current GPS interface in dpdeaemon for the existing API | ||
| * Ref frequency generator from GPS signal, 10MHz output for test equipment (multiple driver outputs to sync many measurement devices) | * Ref frequency generator from GPS signal, 10MHz output for test equipment (multiple driver outputs to sync many measurement devices) | ||
| Line 76: | Line 75: | ||
| A generic signal conditioning board | A generic signal conditioning board | ||
| * some op-amps, low pass filter | * some op-amps, low pass filter | ||
| + | * dip switch / jumper to configure ? | ||
| - | Other Thoughts | + | Other Thoughts |
| - | * 4-20 mA interface somehow integrate commercial sensors into fpga/linux backend | + | * 4-20 mA interface |
| - | * I2C ground loop break (level conversion and always safe) | + | * I2C ground loop break (level conversion and always safe) to I2C , grove, Qwiic devices |
| - | * One board with some switches, a few LEDS and a LCD display, nicely done, visual and size compatible to rest of platform (a little control interface) | + | * One New board with some switches, a few LEDS and a LCD display, nicely done, visual and size compatible to rest of platform (a little control interface) |
| - | * CAN BUS system integration New Chips available | + | * CAN BUS system integration New Chips available, (tribe of car enthousiasts will welcome this) |
| - | * ACS71240 Integrated Current Sensor (hall sensor type) | + | * ACS71240 Integrated Current Sensor (hall sensor type, insulated measurement, |
| * Talking to chargers and electric cars : https:// | * Talking to chargers and electric cars : https:// | ||
| * Current controller/ | * Current controller/ | ||
| * Sub GHz tranceiver Si4464/ | * Sub GHz tranceiver Si4464/ | ||
| * allows many protocols (also known to me from balloon telemetry application | * allows many protocols (also known to me from balloon telemetry application | ||
| - | * ranging 150 km without special antenna (line of site) | + | * ranging 150 km without special antenna (line of sight) |
| * used in remote control and logging of factory equipment (preventive maintenance) and sensors in the field | * used in remote control and logging of factory equipment (preventive maintenance) and sensors in the field | ||
| * thinking about making it into a AX25 mesh network | * thinking about making it into a AX25 mesh network | ||
| - | |||
| Analog CPLD card | Analog CPLD card | ||
| Line 104: | Line 103: | ||
| * Based on the ATA6843 or similar | * Based on the ATA6843 or similar | ||
| - | Silent stepper motor controller with all the trimmings TMC2226 | + | Silent stepper motor controller with all the trimmings TMC2226 |
| * http:// | * http:// | ||
| * https:// | * https:// | ||
| Line 127: | Line 126: | ||
| Configurable voltage regulator card (?) | Configurable voltage regulator card (?) | ||
| * 3.3/3.7/5/6 volt selectable via jumper | * 3.3/3.7/5/6 volt selectable via jumper | ||
| - | * could be some lm317 with resistors | + | * could be some lm317 with resistors, jumpers or switches |
| + | * does it need to be high power? | ||
| + | * typical use case for this board? | ||
projects.1611225425.txt.gz · Last modified: 2021/01/21 10:37 by edwin
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