Hardware

h1. Go 12V

The 5V line already dropped to 4,7V in good condition. I had big problems with

* sensemux

* CANDis displays got reseted on bad conditions

* Radio modules got stuck

* Not sure if other issues have been related to poor voltage

* maybe need higher voltages in the future for bigger displays

24V would be nice but some CAN transceivers can only toleryte CAN-Hi/Low up to 14V.

Hard to find voltage regulators from 12V to 3V.

Is there one that can handle both 12V and 5V? -> CANDis

https://www.reichelt.de/de/de/shop/kategorie/lineare_spannungsregler-8693?filter=207%23~%23%2A%23~%23SOT-23-5%20%23~%23SOT-23-5%23~%230&PAGE=2

https://www.tme.eu/at/katalog/ldo-festspannungsregler_112880/?params=35:1443487,1996156;364:1443548,1443479

   "Detailed filtered":https://www.tme.eu/at/katalog/ldo-festspannungsregler_112880/?params=35:1443487,1996156;364:1443548,1443479;365:1502611,1521533,1443472,1455153,1502656,1498624,1455142,1443466;624:1931429,1890792,1543611,1502480,1996008,1890800,1502370,1898224&productListOrderDir=ASC&productListOrderBy=1000014&onlyInStock=1

MCP 1754-3302CB: SOT-23-3; max. 17,4V; 300mV dropout; 150mA; 3,3V

MCP1703AT3002ECB: 3,3V

MCP1755: pin 4 needs to be high

Display braucht schon 120mA: ->250mA

SPX3819 alleskönner

LDI559-3.3EN-DIO Liesst sich sogar noch besser; da gibts sogar eine 500mA Variante (LDI8119-3.3EN-DIO). Dann koennen bei CANDis die hohen Vorwiederstaende vor dem Buzzer wieder raus :D. CANBuz can auch gas geben.