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projects [2021/01/20 23:38] edwin |
projects [2021/01/21 11:44] (current) edwin |
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| * 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. |
| - | * A GPS receiver card (for absolute time sync and accurate frequency generation) | + | * Uses the count4 Verilog peripheral or a derivative of it |
| - | * Ref frequency generator from GPS signal, 10MHz output for test equipment (multiple outputs to sync many measurement devices) | + | |
| - | | + | A GPS receiver card (for absolute time sync and accurate frequency generation) |
| - | * Galvanic insulated Thermocouple interface | + | * May be based on, or just carrier card of, existing GPS/GNSS receivers, yes |
| - | * 4-20 mA interface somehow integrate sensors into fpga/linux backend | + | * See the current GPS interface in dpdeaemon for the existing API |
| - | * I2C ground loop break (level conversion and always safe) | + | * Ref frequency generator from GPS signal, 10MHz output for test equipment (multiple |
| - | * 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 | + | Galvanic insulated Volt meter |
| - | * ACS71240 Integrated Current Sensor | + | * (low freq) (measure volt/ |
| + | * Optical / transformer / RF gap ? | ||
| + | |||
| + | Galvanic insulated Thermocouple interface | ||
| + | * test bench equipment | ||
| + | |||
| + | A generic signal conditioning board | ||
| + | * some op-amps, low pass filter | ||
| + | * dip switch / jumper to configure ? | ||
| + | |||
| + | Other Thoughts about cards | ||
| + | * 4-20 mA interface | ||
| + | * I2C ground loop break (level conversion and always safe) to I2C , grove, Qwiic devices | ||
| + | * One New 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:// | * Talking to chargers and electric cars : https:// | ||
| * Current controller/ | * Current controller/ | ||
| - | * Sub GHz tranceiver Si4464/ | + | * Sub GHz tranceiver Si4464/ |
| - | Can be used in remote control and logging of factory and sensors in the field | + | * allows many protocols (also known to me from balloon telemetry application |
| - | + | * ranging 150 km without special antenna (line of sight) | |
| - | ** | + | |
| + | * thinking about making it into a AX25 mesh network | ||
| Analog CPLD card | Analog CPLD card | ||
| Line 87: | 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:// | + | |
| - | ** | + | * API to be defined |
| + | | ||
| DCC Model Railroad controller | DCC Model Railroad controller | ||
| * Based on one channel of the current H-bridge | * Based on one channel of the current H-bridge | ||
| * New Verilog required but a fairly simple design | * New Verilog required but a fairly simple design | ||
| + | * recently found out this is a tribe, "model railroad builders" | ||
| + | * Have a board on my desk right now to fix LED lighting of a model | ||
| Battery management card (?) | Battery management card (?) | ||
| Line 108: | 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, jumpers or switches | ||
| + | * does it need to be high power? | ||
| + | * typical use case for this board? | ||
| + | |||
projects.1611185929.txt.gz · Last modified: 2021/01/20 23:38 by edwin
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