projects
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
projects [2021/01/20 08:43] dpisuperadmin |
projects [2021/01/21 11:44] (current) edwin |
||
|---|---|---|---|
| Line 56: | Line 56: | ||
| * Probably no new Verilog | * Probably no new Verilog | ||
| * Simple Linux API | * Simple Linux API | ||
| + | |||
| + | Frequency counter card | ||
| + | * (prescaler, into GHz range) output so low we can count it. | ||
| + | * Uses the count4 Verilog peripheral or a derivative of it | ||
| + | |||
| + | 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, yes | ||
| + | * 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) | ||
| + | |||
| + | Galvanic insulated Volt meter | ||
| + | * (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 to somehow integrate commercial sensors into fpga/linux backend | ||
| + | * 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 (a little control interface) | ||
| + | * CAN BUS system integration New Chips available, (tribe of car enthousiasts will welcome this) | ||
| + | * ACS71240 Integrated Current Sensor (hall sensor type, insulated measurement, | ||
| + | * Talking to chargers and electric cars : https:// | ||
| + | * Current controller/ | ||
| + | * Sub GHz tranceiver Si4464/ | ||
| + | * allows many protocols (also known to me from balloon telemetry application | ||
| + | * 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 | ||
| + | * thinking about making it into a AX25 mesh network | ||
| Analog CPLD card | Analog CPLD card | ||
| Line 68: | Line 102: | ||
| Brushless DC motor controller (?) | Brushless DC motor controller (?) | ||
| * Based on the ATA6843 or similar | * Based on the ATA6843 or similar | ||
| + | |||
| + | Silent stepper motor controller with all the trimmings TMC2226 | ||
| + | * http:// | ||
| + | * https:// | ||
| + | * API to be defined | ||
| + | * Most likely based on low speed serial peripheral | ||
| + | |||
| + | DCC Model Railroad controller | ||
| + | * Based on one channel of the current H-bridge | ||
| + | * 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 80: | 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? | ||
| + | |||
| ===== PERIPHERALS ===== | ===== PERIPHERALS ===== | ||
| + | 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/ | ||
| + | * Single low speed serial port with flow control | ||
| + | |||
| + | |||
| Microstepping stepper motor controller | Microstepping stepper motor controller | ||
| * Uses existing dual H-bridge or quad open-drain driver | * Uses existing dual H-bridge or quad open-drain driver | ||
projects.1611132186.txt.gz ยท Last modified: 2021/01/20 08:43 by dpisuperadmin
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
