Topics created by rozpruwacz

I don't know how to add additional script to gateway sketch. Maybe someone else from MySensors community could help.

What Chinese are doing with this sensor which is used in a handheld air quality meters like this: https://a.aliexpress.com/_UCY55 is this -> Li-Ion battery 3000-4000mAh This would last hours. Not days. Unless you want to use a car battery, I do not think there is a portable pm25 monitor able to work days without recharging.

@rozpruwacz You can call _process(); however, this is an internal function and may change in upcoming releases.

Switch to tantalum if you have space, much better for battery powered as a decoupling cap, low leakage. Choose a cap with voltage 3x to 4x of input voltage.

@rozpruwacz I have also my "own" nrf52840 mySensors board (50m33mm) which we designed together with ranseyer (made for a few cents). The small nRF5280 modules from RFstar which are on our relatively small mySensors board (which the mySensors 2.6 standard pinheader) cost around 5€. So I consider them as very cost effective. One of the very interesting MCU's a few of us have tried is the TI CC1352(P) which has 2,4GHz and 868MHz on-board, so you can use one of theme or both together, but there are only a few modules available and they cost almost 30€ and you need to place them on your own board such as the nRF52840 or any other modules which are meant to solder on own designed boards.

@rozpruwacz o really, yeah me I guess . I'm on my phone atm, but a similar sketch should be in my openhardware.io projects. (Have been playing around with it, but those where minor changes)

so I got my nrf52840 dongle I was able to run mysensors node and serial gateway using MyBoardNRF5 nrf52832 board. So far so good I was also able to upload the sketch using usb dfu, it required minor changes to the linker script although. But from the first tests it appears that the range of the nrf52840 dongle i less than the nrf51822 board I was using before

@rozpruwacz I guess it shouldn't. Maybe if one incoming byte is treated as two, but the kernel should still be able to process that I think. It would decode the byte incorrectly, but it shouldn't cause an overrun.

thank, I will read that

wow, didn't expect such a response thanks. every think is working as expected. I was mislead by some functions from the APDS9930 library that I was not using, but the library was using them in its init function. I solved my problem by reducing size of my code and additionally I removed some functions from the APDS9930 library. So, bottom line. The Arduino IDE uses -fprogram-sections and -Wl,--gc-sections switches during compilation. Those switches remove the unused parts of the compiled objects from the resulting binary.

@nca78 I may end up with two LDO's on a board: XC6206 LDO to provide power while sleeping, to guarantee adequate voltage for a PIR, and a XC6210 LDO, which can deliver 700ma when enabled but which consumes a max of 100na when not enabled. Then I could, in theory, do an OTA firmware upload using LoRa and not run out of juice.

@rozpruwacz - one more thing you can do is to place a small ceramic capacitor (like 1nF to 10nF ... or just experiment with other values) in parallel to the thermistor, that will also filter noise.

Hello all, is this solution added to the standard MySensor library? If so, in which version is it implemented? I want to be sure there are no missing messages when having a list of messages to be sent. many thanks in advance

@gohan Maybe: RFM69 and RFM95 have a software-based packet engine responsible for the ACK handling, i.e. with extreme clock differences between node and GW, TX from (fast) GW may occur before the radio of the (slow) node is in RX, that's why we introduced additional delays for faster CPUs. I had no issues running the code on RPI1 (0.7GHz) and RPI2 (0.9GHz), but I do not have a RPI3(1.2GHz) where additional timing optimizations may be needed.

Hi, I have used Pcbs.io three times, first and second was good shipping time, both was 3 weeks from order to arrival. but now the third time I ordered 27/1 2018 and today 19/3 2018 I have still not received it. I got an email that my Pcbs were on the way at the 7/3 2018 but USPS have still not get them from Pcbs.io. So do not use Pcbs.io

Hi, I am interested in this as well, I got the old wood boiler and all its smarts is by 220v and thermostats and relays. I would like to interface those signals with Arduino for displaying some of the boilers states and then maybe automate some things afterward. Til now I thought about a lot of 5v chargers, but this module seems to be more compact.

I don't have instrumental evidence but again my best guess is that the side opposite of the radio chip is were most likely the EM field is radiated the most, so try to "aim" the antenna side to gateway

Hardware signing provide read back protection. If a node is stolen that use software signing, the hmac key will be available to the attacker and the entire network will be compromised. If a personalized atsha device is stolen, the programmed hmac key will still be unavailable to the attacker and the network will remain secure.

@rozpruwacz you could start here if you haven't already: https://forum.mysensors.org/topic/4748/lots-of-repeater-nodes https://forum.mysensors.org/topic/152/can-i-have-too-many-relaying-repeater-nodes

@mfalkvidd said in using pins A6 and A7 of arduino pro mini to read push button state: You can perform a digitalRead on an analog pin if you want to though, see https://www.arduino.cc/en/Reference/DigitalRead Not on A6/A7, they are exclusively analog pins.

@zen85 unfortunately not. See https://www.mysensors.org/apidocs-beta/group__RF24SettingGrpPub.html#ga6b3dbadceeb1dfca62b2e920d926bd4a for details (MY_RX_MESSAGE_BUFFER_FEATURE section)

@mickecarlsson I believe BME280.writeMode(smSleep); is not necessary. Forced mode must be used. I think after taking the measurement the sensor goes back to sleep. BME280.writeMode(smForced);

@rozpruwacz great to hear! Now continue the fun

@napo7 thanks for response. Actually I want to avoid such solution. The main reason is the reliability. Just want to have wired connection between switch and the actuator. I tried the solution with resistor ladder like this: (5V) | (R=2kOhm) | (ADC PIN) | |--- (SW1) --- (R=1kOhm) -----| | -- (SW2) --- (R=1.5kOhm) --| |--- (SW3) --- (R=3kOhm) -----|--- (GND) So pressing different switches (SW1 to SW3) should result in different resistance seen between ADC PIN and GND. And to be able to detect multiple switches pressed at the same moment the resistor values must differ. Unfortunetly this makes very little differences between some combinations, and i'm afraid that on 5 meter long wire the noise will cause misdetections. Does anybody used such solution ?

In my use of bistable latching relays, where the state of the relay position is information that must be tracked, I have found it to be easiest to use an optocoupler (H11AA1 or PC817C) to feedback the state of the relay position, which is polled at bootstrap. If you have multiple states to read at boot, you can use something like the TCA9548A multiplexer to accomplish the state read and to set your volatile state variables appropriately, and save on your μC pin count.

ok, thanks. As I understand this will only affect battery powered node when changing the batteries (or rebooting the node in some other way). Without MY_TRANSPORT_WAIT_READY_MS the gateway must be up and running and in the range of the node, if not the node may drain the batery quickly.

ok, so how do i configure the build to use RF24 with SPIDEV driver ?

great news with the new nrf modules there is no more range problem for the gatewane i use nrf24l01+pa+lna and for the sensor node nrf24l01+. now from every place in my small flat the connection is perfect