hi
Can module sx1278 also convert spi to Lora protocol (With header and data section and .... ) or is it just a transmitter and receiver in Lora network?
Main problem (already "quickfix" solved) is completely new and incompatibile interrupt system implemented in new (post-2016) ATtinys. More flexible, but also coming with some problems when using Arduino-like code and few libraries. Other than that, due to completely new power management these features I don't tested yet, may not work properly...
@Jodaille Thanx for the link to the project. I think I'll order one of those sensors this weekend. As I hope it can also send the amount of rain that is falling.
I do have to check the optical sensor. But I really like the heating in the controlli sensor
@TriXwooD said in Double SPI Radio Raspberry Pi:
dtparam=spi=on
dtoverlay=spi1-1cs,cs0_pin=36
@TriXwooD : Thank you, this helped me a lot. I had to use a different pin number in /boot/cmdline.txt though for that it matches the pin number given in the configure statement:
dtparam=spi=on
dtoverlay=spi1-1cs,cs0_pin=16
./configure --my-rf24-cs-pin=36 ...
Configure wants the BCM pin number (36), but the dtoverlay wants the corresponding GPIO pin number (16).
@ptr727 This chip will work for a single channel dimmer, but has trouble operating as part of a multi channel dimmer. I prototyped a one channel design and had it working but gave up as I could not get a workable design for a 4 channel unit.
@ejlane Correct. 7 nodes = 7 machines. BUT, the 7 current machines are 7 raspberry pi 4 (8gig Ram) modules. it is 1/2 of what my goal is. Eventually it will be a full 14 node cluster.
I had been doing something similar with the pi satellites. I found that if you tell it to use a UDP broadcast to localhost for the wakeword/recording then it doesn't send the audio frames to the mqtt broker.
Update
Meanwhile I made progress with my project. Together with some colleagues I want to install a real-time measurement system with more than 30 channels (i.e. 30 Nano BLE 33 measuring accel. and gyro.) and one evaluation unit (another Nano BLE 33 combined with other computers). The 6 values (2*x,y,z) of 16 Bit each shall be transmitted with 10 measurements per second.
Instead of spontaneous sending beacons with new measurement values from the 30 devices (to many collisions, real-time simply not possible) I use a master-slave polling, done by the evaluation unit. And I continue using non-connectable/non-scannable BLE-Beacons, for the request messages and for the response messages.
Meanwhile, my beacons can be detected by typical BLE scanner APPs on my smartphone (Android 10). I do not know, why that did not work at the beginning. May be I corrected some mistakes incidentally in the last months.
I am working also on a channel hopping (in case of disturbances by other devices with BT and WLAN) and using more channels for higher measurement speed. But the implementation of that will start later.
8 hours later
Now I found a reason for the behavior of the Scan-APPs: My request beacons (without data, only user address of 6 bytes) are detected, but not the response beacons with data.
I do not need the smartphones now (the speed of about 500 beacons per second is to fast for them), so I am happy with my solution.
