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  1. Replies
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    Closed: Re: Analog to digital converter atmega 8

    most likely that problem in fusebits configuration, or may be in onboard connections. try to simple led blink to make sure that controller works and works with necessary frequency
  2. Closed: Re: German V1 and V2 control systems and electronics discussion

    something about control and electronics systems - http://spasecraftrocket.org/rocket_v2_us_upravlenie.html but in russian
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    Closed: Re: Edaboard frequently disconnects .

    access through proxy server also works as solution
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    [SOLVED]Closed: Re: Atmega8 voltmeter hang-up somewhere

    "for(i=0; i<=40;i++)" must be "for(i=0; i<40;i++)" if adc_value[40]
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    Closed: Heat gun controller (STM8)

    that is for my old 2kW thermofan "Talon", but also can be useful for other cheap heat guns. adds possibility of the airflow and heater power regulation.
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    [SOLVED]Closed: Re: Russian ic problem..

    555ТМ2 - SN74LS74
    555ЛА4 - SN74LS10
    555ЛА3 - SN74LS00
    157УД2 - that is 2xOPAmp, but without direct analogues.
  7. Closed: Softstarter for electrical power tools (stm8s).

    that is for my chainsaw but also can be used for any other tools like plane, circular saw, angle grinder etc. with electric motor commutator (without internal softstart circuit)
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    Closed: Re: Dimmer for incandescent lamp (STM8S, mosfet)

    stm8L version (with 0,2W consumption).
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    Closed: Re: Dimmer for incandescent lamp (STM8S, mosfet)

    Hello Relayer.

    potentially dangerous part is located under backside of PCB so only button outward protrudes.
    in real device (rather then prototype) is expected use double-sided material, one...
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    Closed: Re: Dimmer for incandescent lamp (STM8S, mosfet)

    Thanks, Schmitt trigger.

    not so deep, i'm only hobbyiest.

    that is certainly need for special call?
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    Closed: Re: Dimmer for incandescent lamp (STM8S, mosfet)

    I has forgotten to mention - when programming it is necessary to set LSI_EN bit in OPTION BYTE for LSI clock source became available as mcu clock source.
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    Closed: Re: Dimmer for incandescent lamp (STM8S, mosfet)

    version with regulation by potentiometer
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    Closed: Dimmer for incandescent lamp (STM8S, mosfet)

    with overcurrent protection and reduced lamp acoustic noise level.
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    Closed: Re: Controlling a heater

    may be better is triac and relay. triac switch on before relay and switch off after relay.
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    Closed: Re: Sinewave inverter prototype...

    "LO.HV" says no high voltage or it is not enough for given output voltage, so mcu can not calculate PWM depth.
    "ocpt" says mcu detect UC3843 overcurrent protection operated. to disable this function...
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    Closed: Re: Sinewave inverter prototype...

    220VAC_110VAC converter with some improvements. but mcu program tested only in model-based charge, not in real device.
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    Closed: Re: Sinewave inverter prototype...

    Hello, Thassio28.

    may be that is in consequence of pcb tracing, or influence of the hindrances on BKIN pin (PD1) or fault in 6N137 feeding - i do not know. this is aging scheme, requires some...
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    Closed: Re: Russian IC details KAL 1293

    that is "КА-1", 1293 possible 12 month 1993 but what is inside knows only IC developers
    possible aproximately understand that after sawn down IC lid.
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    Closed: Re: Russian IC DATASHEET

    КР1533КП11А - SN74ALS257
    564ЛЕ5 - CD4001
    2ДC628|627 - http://www.eandc.ru/catalog/detail.php?ID=1063
    1533ИД4 - SN54LS155
    1533ИP33 - SN54ALS573
  20. Closed: Re: How to get exact 1 ms Timer0 OVF Interrupt for ATMega8A ?

    ТССR0 = 3; // prescaler 64
    //TCNT0 reload value:
    TCNT0 = 4E6/64/1000-1; //interrupt freq. approx. 1008Hz
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    Closed: Re: STM8s003 fluctuating ADC value

    AD_Value =((((unsigned int)ADC_DRH)<<2)+ADC_DRL);

    if left alignment the reading order should be MSB first so
    AD_Value = (unsigned int)ADC_DRH<<2;
    AD_Value+= ADC_DRL;
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    [SOLVED]Closed: Re: STM8s003 getting reset with noise

    usually to avoid unnecessary reset it is used R to Vdd and C to gnd chains.
    http://obrazki.elektroda.pl/3907546600_1500143929_thumb.jpg
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    Closed: Re: Sinewave inverter prototype...

    sine wave with 31kHz spwm

    no, that is unreliable without some changes in drivers and mcu program.

    no, Atmega8 is unbeseeming for this.
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    Closed: esr tester (stm8) .

    http://obrazki.elektroda.pl/7072403200_1494437582_thumb.jpghttp://obrazki.elektroda.pl/8564685400_1494437648_thumb.jpg
    ferrite cores for transformers is taken from broken compact fluorescent lamps.
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    Closed: Re: Insulation tester (STM8)

    slightly improved version
    http://obrazki.elektroda.pl/1968392900_1493407976_thumb.jpg http://obrazki.elektroda.pl/8357530800_1493376475_thumb.jpg
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