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Orientation Sensor

openhardware.io last edited by openhardware.io

https://www.mysensors.org/view/53/Orientation-Sensor
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Fat Fly last edited by

I want to drive solar panels. It is possible ?
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AWI Hero Member last edited by @Fat Fly

@Fat-Fly I would suggest the Actuator to drive solar panels. But it seems like you already found it a while ago...
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Fat Fly last edited by

@AWI said:

@Fat-Fly I would suggest the Actuator to drive solar panels. But it seems like you already found it a while ago...

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Yes. I find. I want to test this mpu9250 but some errors.
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Deluka last edited by

Trying this build but getting the following in the serial monitor

MPU init: 0
Free mem: 1144
AWI Orientation

PWR led on the sensor is on but not getting any readings
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Deluka last edited by

Found the error.
Wiring diagram is incorrect
It's not 4 and 5 but A4 and A5
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Fat Fly last edited by

I do not was time for this but want to try.
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I have published all the documentation in a Github repository. If someone wants to make PCBs, I recommend that you wait a little longer until you receive my PCBs and try them. https://github.com/giltesa/SmartHome
Car battery health monitoring and alerts system with IoT integration
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@NeverDie Thx for appreciating the work done. There will also be an open source part in the future. When and how extensive the open source part will be, remains to be seen. The release of certain information (block diagram, ..., in this post) is related to those open source parts. There are some OBD solutions, however most of them (in my experience) give back low frequency data put by the car manufacturer on the OBD-bus (CAN, ...). Therefore transients evolving directly from the battery could only be recorded if the manufacturer sends those data accordingly on the bus. Due to the small bandwidth(also because of other car data that have to be sent, ...), such battery data are sent more often once per second or less. Fast battery events (i.e. cranking events, ...) are therefore imperceptible. Unless the manufacturer processes the fast events and then sends them (once per second or less), which is very unlikely if the manufacturer does not market this feature itself. Third parties devices for high frequency sensing costs several hundreds dollars. In my experience, important battery states (especially the fast ones) are recorded by measuring and processing corresponding data directly on the battery. I agree with you about the limits related to the communication over Bluetooth. But i think Bluetooth 5.0 will improve a lot. However, WiFi will always remain an important option due to the high data throughput. The combination of both (BLE & WiFi), especially with regard to energy consumption, will gain in importance.
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@mfalkvidd The mySensors site with all the build examples. The gesture control sensors is still in MySensors 1.x version
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@neverdie that's quite some money...
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@Samuel235 said in Homini AC Powered Relay (2) Module: OMRON G3MB-202P Okay I'm trying to help you with the fuse component. I found a datasheet for the OMRON G3MB-202P. And there are enoght information to be known for fuse selection. I try to calculate it here (and i will try it with my bad English ). The most important information is the melting integral. The Melting integral has A²s as unit. So this means the maximum current for a time can exists without damaging the device. For further information look at wikipedia. So we need any further information about: the protection which is present before (the typical circuit protection in private houses) the melting integral from the device which we want to protect the maximum voltage the maximum switching current the breaking capacity Inrush current for the switched devices (we can't know) Typical values for an automatic circuit breaker in private houses are: from 25 to 100 A²s 230 V AC 16 A So this protection isn't good enough for our relay. The relay have these values: 230 V AC 2 A maximum switching current I²t value (melting integral): 4 A²s the allowed inrush current over a small time is higher than the melting integral. It is a bit confusing i think, but if we calculate the protection for the given melting integral and it's fine. So we can define the parameters for the client (switching site of this application here) The fuse have to be: I²s value higher or equal than the I²s value from the existing protection rating voltage over 230 V AC rating current 2 A or lower (because 2 A is the maximum at 25 °C, for 40 °C it is about 1.6 A) a maximum switching time of 1 second at 2 A or lower time with higher current but below 4A²s! To calculate use the switching time from the fuse datasheet an multiply it two times with the given current for this switching time. And i think a fast blow fuse would be the best. There are SMD fuses with 10.1 x 3 mm and 250 V AC available. If there is no fuse available with the values above, we could combine multiple fuses. A possible solution could be one bigger fuse for both relays and the ac/dc component. And a smaller fuse for the switching site of the relay and the HLK-PM01. But for this it is important that the circuit have only one input for the hot one (L) of 230 V and one output for each relay. In this case we could reduce the big connectors from 6 to 4. Like (L, N, Relay1, Relay2). And the temperature fuse can work for all components too So the protection for the primary site of the HLK-PM01 is a problem i think. Because the are no information available about the I²s value from HLK-PM01. I hope you can understand my English and could follow my explanation?
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Hi @blackchart, Unfortunately, all devices are sold out. Further production is possible only when ordering more than 10 devices (in this case, I also can modify the device to suit your needs).
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I have success! (oops, that's suppose to be Timer1) I only sample for 1/60 of a second. What I did was to back up all the timer registered I used and then resorted them after I was done sampling. (As opposed to initializing the registers in setup and then starting the timer when needed.) Now I have a Nano sampling the data and sending it to a MySensors Gateway on an RPi3B+ which then sends it to an MQTT broker runing on an old laptop. Also running on the laptop is Home Assistant running inside of VirtualBox. If MySensors does use Timer1, it appears that restoring the registers allows it to be shared. //------------------------------------------------------ISR ISR(TIMER1_OVF_vect){ // interrupt service routine for overflow TCNT1 = TimerPreloadValue; // must be first line! starts the timer counting again digitalWrite(TRIGGER_START_SAMPLE_PIN,HIGH); samplesVolts[--sample]=analogRead(VOLTS_IN_PIN); // decrement before capturing samplesCurrent[sample]=analogRead(CURRENT_IN_PIN); digitalWrite(TRIGGER_START_SAMPLE_PIN,LOW); if (!sample){ // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,LOW); // indicate that sampling is complete samplingEnd = micros(); TCCR1B &= 248; // turns off timer } } //------------------------------------------------------sampleOneCycle void sampleOneCycle(){ // back up timer registers uint8_t TCNT1_b = TCNT1; uint8_t TCCR1B_b = TCCR1B; uint8_t TCCR1A_b = TCCR1A; uint8_t TIMSK1_b = TIMSK1; // configure timer which starts the sampling noInterrupts(); // disable all interrupts TCCR1A = 0; TCCR1B = 0; TCNT1 = TimerPreloadValue; // preload timer //TCCR1B |= (1 << CS10)|(1 << CS12); // 1024 prescaler TCCR1B &= 248; // turns off timer? TIMSK1 |= (1 << TOIE1); // enable timer overflow interrupt ISR // demark sampling sample = NUMBER_OF_SAMPLES; // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,HIGH); samplingStart = micros(); TCNT1 = 65535; // first trigger right away! TCCR1B |= 1; // turns on timer interrupts(); // enable all interrupts // wait for sampling to be complete while(digitalRead(TRIGGER_START_SAMPLE_PERIOD_PIN)){}; samplingEnd = micros(); // restore timer registers TCNT1 = TCNT1_b; TCCR1B = TCCR1B_b; TCCR1A = TCCR1A_b; TIMSK1 = TIMSK1_b; }

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