Matthijs de Vries 🧢

Ondernemer, Electronics/Software/PLC/Scada Engineer. Radio HAM. Speed skating instructor and a wide range of interests incl. Astronomy.

[Matthijs de Vries 🧢 @_MDV_]

@electricfelix Only gold is more expensive…

[Matthijs de Vries 🧢 @_MDV_]

@ATaylorFPGA @ibelings Oh OK, for high impedance switching it will be fine, but you need an opto coupler or extra driver for solenoid or other outputs.

[Matthijs de Vries 🧢 @_MDV_]

@ATaylorFPGA @ibelings That are inputs, this was about outputs I thougt.

[Matthijs de Vries 🧢 @_MDV_]

@ATaylorFPGA @ibelings With a series resistor it will be hard to deliver enough current to switch a relais.

[Matthijs de Vries 🧢 @_MDV_]

@ATaylorFPGA @ibelings

[Matthijs de Vries 🧢 @_MDV_]

@ibelings @ATaylorFPGA Normal digital outputs should be able to output 500mA, with a series resistor that is not possible.

[Matthijs de Vries 🧢 @_MDV_]

@BM_Visser Elke keer met mooi weer betalen we de hele middag alleen maar 13 cent belasting per kWh. Morgen opnieuw.

[Matthijs de Vries 🧢 @_MDV_]

@daviddesmetmed @lukdewilde Maar in die seconde legt het vliegtuig wel een enorme afstand af.

[Matthijs de Vries 🧢 @_MDV_]

@daviddesmetmed @lukdewilde 125.000 liter / 18.000 km is
7 liter per km. Met 300 mensen is dat 2,3 liter per 100 km per persoon, beter dan een auto.

[Matthijs de Vries 🧢 @_MDV_]

@ZapTruths @bhasan77 @cqcqcqdx My Fluke measures pure resistance not impedance Z. Also just DC resistance not AC .
Anyway, it’s the current that shock’s not the voltage.

[Matthijs de Vries 🧢 @_MDV_]

@Eddiedevries77 @Tammie1808 Goed luisteren naar toerental dan kan dat, alleen voor profs :)

[Matthijs de Vries 🧢 @_MDV_]

@ZapTruths @bhasan77 @cqcqcqdx Then my Fluke is broken? Measure your own resistance to see what it reads.

[Matthijs de Vries 🧢 @_MDV_]

@elormkdaniel It could be an incomming call or just the phone having a chat with an external big GSM relais station without ringing.

[Matthijs de Vries 🧢 @_MDV_]

@elormkdaniel The preamp was not HF decoupled and when a phone started to transmit at an incomming call the preamp amplified the induced HF signal and worked as a demodulator by bad design. The HF demodulated signal was amplified and output by the speaker.

[Matthijs de Vries 🧢 @_MDV_]

@ZapTruths @bhasan77 @cqcqcqdx Approx. 1.7MΩ with firm vinger press.

[Matthijs de Vries 🧢 @_MDV_]

@ZapTruths @bhasan77 @cqcqcqdx You can die from less than 50 Volts.

[Matthijs de Vries 🧢 @_MDV_]

@Tammie1808 Wat ik bedoel is dat je aan een koppeling geen onderhoud kunt doen behalve dat je zelf zo weinig mogelijk de koppeling moet laten slippen dus opletten met schakelen en optrekken.

[Matthijs de Vries 🧢 @_MDV_]

@electricfelix The want you to be longer in the store so you buy more. Good idea.

[Matthijs de Vries 🧢 @_MDV_]

@bhasan77 @ZapTruths @cqcqcqdx Oh Piezo element.