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Faulty Easy PCB boards modified

mickecarlsson last edited by mickecarlsson
I bought 20 of the Rev 10 Easy PCB boards from Openhardware, but could not get them to work with the flash memory.
See thread here: Bug in Easy PCB
So I just bite the dust and forgot about them. Until a couple of days ago when I decided to see if I could get them to work.
I modified the PCB and got them to work.
1. The unmodified board
2. Cut line between pin 7 and the capacitor and scrape of at the right of the C7.
3. Solder the capacitor, solder a blob from the capacitor to the scraping.
4. Solder a blob between pin 7 and 8 on the flash chip
5. Solder a piece of wire between pin 6 of the flash chip and pin 13 of the Arduino.
I then started to try to flash the Sensebender OTA firmware to my Arduinos. It was a No Go, I had tons of trouble until I decided to change the Arduino to another version that I had.
Sad to say, all Funduino Mini pro's that I have are all faulty.
I had some other Mini pro that was marked Deek-Robot, those worked like a charm.
I did some testing yesterday and was able to flash new firmware via OTA and MYSController.
More about that in an another thread as I found some quirks in the process of doing OTA.
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I bought the Every because it implied it was backward compatible with the nano. No, it's not, as we found out. Be that as it may, any word on a getting the Every working with mySensors?
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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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@Tmaster Never assume the original PCB was just a circuit of components, the PCB can incorporate RF shields and antenna radio ground planes...
Which one should i choose? PIR or microwave sensor
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Supposedly PIR doesn't work through glass (e.g. if looking for motion through a window), whereas I presume a microwave sensor might still work.

Faulty Easy PCB boards modified

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Faulty Easy PCB boards modified

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Over the air updates
General Discussion • • ToSa

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Hardware • • hakha4

Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • • OldSurferDude

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Hardware • • Robert Leverett

hlk-pm01 are to noisy for rfm69?
Hardware • • Tmaster

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