At this time I use circuit shown below to multiplex data input two 7 segment LED display to one output of ESP8266 chip. It is because I have ESPeasy SW installed on it. Such software can work only with one such display, so I have to "fool" ESPeasy that it only works with one display while de facto works with two. All switchings are done by rules defined in ESPeasy configuration. Relays I use are SSR type, small, fully semiconductor relays (without debunce effect of course). But such solution is too expensive and to big in size comparing to MOSFET transistors like 2N7000.
Unfortunately, I do not have enough knowledge, hence I ask Colleagues in the forum. How can I replace the relays shown in the diagram above (along with the bipolar transistors controlling them) by MOSFETs?
Unfortunately, I do not have enough knowledge, hence I ask Colleagues in the forum. How can I replace the relays shown in the diagram above (along with the bipolar transistors controlling them) by MOSFETs?