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new 600Mhz Teensy 4.0 blows away everything on performance

NeverDie Hero Member last edited by NeverDie

This chart tells the tale:

What to do with all that speed? Become a software defined radio, maybe? Or perhaps run the entire development toolchain on the device itself?
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alowhum Plugin Developer last edited by

Machine learning?
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mfalkvidd Mod last edited by @alowhum

@alowhum good point. Maybe not learning, but inference could be very useful.
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FINALLY! My replacement arrived and I soldered it to my pro mini. This time I used a level converter for powering it directly from VCC and not the arduino's VCC. First no luck, but after switching MISO and MOSI it finally worked: LED Flash Checking LoRa Device LoRa Device Present LoRa device version 0x12 LoRa Registers Reg 0 1 2 3 4 5 6 7 8 9 A B C D E F 0x00 00 09 1A 0B 00 52 6C AA 99 4F 09 2B 20 08 02 0A 0x10 FF 70 15 0B 28 0C 12 47 32 3E 00 00 00 00 00 40 0x20 00 00 00 00 05 00 03 93 55 55 55 55 55 55 55 55 0x30 90 40 40 00 00 0F 00 00 00 F5 20 82 EF 02 80 40 0x40 00 00 12 24 2D 00 03 00 04 23 00 09 05 84 32 2B 0x50 14 00 00 11 00 00 00 0F E0 00 0C F0 07 00 5C 78 0x60 00 19 0C 4B CC 0E 7F 20 04 47 AF 3F 7A 00 3B 0B 0x70 D0 01 10 00 00 00 00 00 00 00 00 00 00 00 00 00 Current frequency 434.666MHz Write new frequency 434.400MHz Changed frequency 434.400MHz Seems like the diagram of the shop where I bought the arduino is switched. However I can now try to read the sensor and send the data via LoRa! Awesome! One final question (not related to this issue but maybe you can still answer that in this topic ) : I got a RXB6 runnign to read a radio rain sensor at 433MHz. Is this received able to recive also LoRa signals or do I need a dedicated LoRa chip to receive LoRa radio signals?
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This thread reads like an Agathie Christie novel. Well done on finding it!
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@adfx Thanks for checking. I read once a blog/page about the use of multiple spi devices. It explained about the use of pull up resistors on the enable pin of every device you have on this bus for this specific problem. Just to be sure when I was testing it I did not connect the nrf24. I added that resistor to this PCB. So far it's works with the MySbootloader and just burning the program with the USBASP. Even with the nrf connected. I really believe that it was the chip itself. But I still have them waiting for a better test environment.
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I have a ton of different sensors , just to satisfy my own curiosity: 2x MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 GP2Y1010AU0F A few DHT11s, DHT22s and a few other temp/moisture sensors I can't recall atm A few BMP280's MS-1100 RadiationD-v1.1 Three dust sensors I can't recall the model of right now, bought them so long ago Probably something else I've forgotten right now
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@Nca78 I trying to use the GYTN-2490 display the same I intend to use with the PCF855 controller, how did you manage to show the values in the photo? which MCU do you use? I use PIC18f https://ibb.co/album/QX1sSS
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@axillent can you post the pcb file of this project????
Ds18b20/ nodemcu fluctuations in temp
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@mjdula The 85 reading is actually an error message used by the ds18b20 to indicate it has not had time to complete the processing of the reading. Most commonly this is only seen when the node first boots up and can be ignored or fixed by adding a small delay. You will find a lot of information on this if you do a google search. I have never experienced it myself but from other posts on the net it seems power supply problems and long cable runs to the sensor can also cause the error. Some have also had success by using a different resistor value. Note you only need one resistor fitted near your nodemcu not a resistor at each ds18b20. If the 85 reading is well outside your expected reading you could just filter out any readings over 84 as well.

new 600Mhz Teensy 4.0 blows away everything on performance

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