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Looks as though the raspberry pi pico will provide 16-bit PWM duty-cycle resolution

NeverDie Hero Member last edited by NeverDie

Contrast that 65535 step resolution to the 255 step duty-cycle resolution on Arduino's, and that is a big improvement for control of, say, a DIY DC-DC converter. For instance, if you want to build your own DIY solar MPPT boost converter (good luck finding one to buy in the commercial market. Probably 99%+ of those are step-down MPPT controllers, with only a rare bird being a step-up MPPT controller). The pi pico's are just $4 each at mouser and Adaruit ( https://www.adafruit.com/product/4864 ) for the genuine article, not some sketchy knock-off. Just thought I'd mention it, as I think most people aren't aware of it. I'm not sure whether or not a more stripped down version of the pi pico would consume significantly less current. If so, then it might be quite compelling: a fully formed pi pico board for $4 vs. an atmega328p chip alone for $3 (note: as a reference, these are present market prices on mouser).
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@andriej Hi, I had problem using the main branch mysensors/Raspberry, that because of the bit-field struct (header_s) in Sensor.h They will get packed in different order on the arduino compared to the RPi (at least with my compiler, gcc). In order to fix this I created the 1.4dev branch. It uses full bytes instead of the bit-fields, but you need (of cause) to compile both the sensors (arduino) and the gateway (RPi) using the 1.4dev branch. We need to fix this in the main branch later on (and use the same files as in mysensors/Arduino/libraries/MySensors)
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General Discussion • • kiesel

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Thanks for the offer @TheoL ! I have moved on to a differenct project. Also, a lesson that I have learned many times, "If it works, don't fix it!" -OSD
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General Discussion • • mimaret

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@mimaret It was a pleasure. Thank you for your feedback!
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General Discussion • gatawayesp8266 compile error • • skom

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@eiten Ran into the same error but of course the community is always at hand, ready to help! Great! I'm using MySensors 2.3.2 release version. Downgrading the ESP8266 board library to 2.7.4 as suggested by @OldSurferDude did the trick. I'm still clinging to MySensors. So simple and inexpensive to use! All sensors and other stuff connects over three MQTT GW in three locations back to my Home Assistant. PS: Get well soon! Regards, Gunnar
Running out of nodeId's
General Discussion • mysensors • • NielBierman

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@TheoL Not only did I put in delays, too, but I put in delays that were based upon the ID (which was stored in NVRAM)! This helped. caveat: This is probably not accurate be helps to explain the challenges with a large network. My initial experience with Arduino/nRF24 was using the libraries from TMRh20. Those libraries allowed a node to be a repeater, but only for 6 nodes. The primary node 0, master, only allowed 6 nodes to connect to it. The nodes connected to it also allowed 6 nodes. Subsequent nodes had to go through one of these repeating nodes. But the depth was only 4 deep. The master assigned node IDs if the node didn't already have one; similar to a MAC address. The master also kept track of the addresses (ARP table?). Addresses were 4 octets (base in the form of D/C/B/A. A node connected directly to the master had an address of 0/0/0/a (where 0/0/0/0 was reserved for the master). A node connected through another node had an address of 0/0/b/a, and so forth. But what happens is that a parent node has to mange the data from all its child nodes and their child nodes and their child nodes. Thus a node would get so bogged down dealing with this traffic that it din't do its sensor task very well. It is my belief that MySensors either uses TMRh20's libraries or has developed some aspects based on his initial work. I see that that TMRh20 has a version 2 and I have not experimented with it. I did find that MySensors worked better than version 1. Thus, my curiosity. I am also duly impressed at the magnitude of hardware. Currently a nano like device from Aliexperss is US$2-3, nRF24 ~ US$1, power supply ~ US$1.50, power cord ?, case?, sensors!? While the hardware cost is daunting, even with a PCB it's a lot of work building those up. So, yeah, I'm impressed! -OSD
single-click, double-click, long-press button possible with MySensors?
General Discussion • • dirkc

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hey @dirkc, maybe you can trigger your interrupt to rising and falling edge and use millis() to see how long the press was?

Looks as though the raspberry pi pico will provide 16-bit PWM duty-cycle resolution

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Looks as though the raspberry pi pico will provide 16-bit PWM duty-cycle resolution

Suggested Topics

Update RF24 library to latest version Bug Reports • • andriej

Anybody got one / a few spare minimalist rfm69hw shields for wemos d1 mini? General Discussion • • kiesel

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GatawayESP8266 - Compile error General Discussion • gatawayesp8266 compile error • • skom

Running out of nodeId's General Discussion • mysensors • • NielBierman

single-click, double-click, long-press button possible with MySensors? General Discussion • • dirkc

52Online

11.4kUsers

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Update RF24 library to latest version
Bug Reports • • andriej

Anybody got one / a few spare minimalist rfm69hw shields for wemos d1 mini?
General Discussion • • kiesel

Gateway on Raspberry pi 1
General Discussion • • mimaret

GatawayESP8266 - Compile error
General Discussion • gatawayesp8266 compile error • • skom

Running out of nodeId's
General Discussion • mysensors • • NielBierman

single-click, double-click, long-press button possible with MySensors?
General Discussion • • dirkc

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