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Eval » Historie » Revision 5

Revision 4 (Redmine Admin, 27.01.2022 14:16) → Revision 5/13 (Redmine Admin, 27.01.2022 15:27)

h1. Eval

Usecases:
* sensor for 4 sensors

use dg409 to switch between sensors. (DG409 is 2:4 with 2 address lines, DG408 would be 1:8 with 3 address lines)
* 2x 5v output.
2x 3v
output for pumps. (switch lamps).
* i2c RTC for date (standalone).
* CAN for candis.
1xPWM output (trivial canio, workaround fuer lampen. Warum 2?)
1xPWM output buzzer; 17:[[https://www.homofaciens.de/technics-base-circuits-h-bridge_ge.htm]] muesst sein, mit not baustein.
Wenn invertiertes PWM-Signal vorhanden ist, spart man sich nen enable. NOT + NAND
* Update via USB is a nice feature. Circuit already available.
* RTC for switching lamps, standalone
* PWM output for lamps
* loud buzzer for alarm/alarm-clock
* button for confirm stuff
* OUT output for lamps; 2x3V (plant lamp/room lamp)
* 2LEDs regular
* SPI NAND-Flash
* VUSB to can? Switch?
SPI-Nand

Most things can be copied from candis.

https://www.nxp.com/docs/en/data-sheet/MC34933.pdf