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  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    vasyl

    &

    a year ago

    63 Comments

    12 Stars

  • Pet Tracker Device noPL

    Pet Tracker Device noPL

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    mousum

    a year ago

    1 Comment

    1 Star

  • Realistic Brown Battle Mech

    Realistic Brown Battle Mech

    Nice — you can do a clean pulse + latch using a single quad Schmitt-NAND chip: 74HC132 (or 74LVC132 for 3.3 V systems). The HC132 contains four 2-input NAND gates with Schmitt inputs so you can both clean a noisy SYN480R DATA line and build an SR latch (NAND SR is active-LOW) inside one package. Only a few passives and a driver transistor are needed.
    Below is a ready-to-build recipe (parts, wiring, explanation, tuning tips, and an ASCII schematic) — no extra logic ICs required.
    Parts (per latch)
    1 × 74HC132 (quad 2-input NAND with Schmitt inputs).
    If your system is 3.3 V use 74LVC132 / 74HC132 rated for 3.3 V.
    Rin = 47 kΩ (input series)
    Cfilter = 10 nF (input RC to ground) — tweak for debounce/clean time
    Rpulldown = 100 kΩ (pull-down at input node, optional)
    Rpullup = 100 kΩ (pull-up for active-LOW R input so reset is idle HIGH)
    Rbase = 10 kΩ, Q = 2N2222 (NPN) or small N-MOSFET (2N7002) to drive your load
    Diode for relay flyback (1N4001) if you drive a coil
    Optional small cap 0.1 µF decoupling at VCC of IC
    Concept / how it works (short)
    Use Gate1 (G1) of 74HC132 as a Schmitt inverter by tying its two inputs together and feeding a small RC filter from SYN480R.DATA. This removes HF noise and provides a clean logic transition. Because it's a NAND with tied inputs its function becomes an inverter with Schmitt behavior.
    Use G2 & G3 as the cross-coupled NAND pair forming an SR latch (active-LOW inputs SÌ„ and RÌ„).
    A low on SÌ„ sets Q = HIGH.
    A low on RÌ„ resets Q = LOW.
    Wire the cleaned/inverted output of G1 to SÌ„. A valid received pulse (DATA high) produces a clean LOW on SÌ„ (because G1 inverts), setting the latch reliably even if the pulse is brief.
    R̄ is your reset input (pushbutton, HT12D VT, MCU line, etc.) — idle pulled HIGH.
    Q drives an NPN/MOSFET to switch your load (relay, LED, etc.).
    Recommended wiring (pin mapping, assume one chip; use datasheet pin numbers)
    I’ll refer to the 4 gates as G1, G2, G3, G4. Use G4 optionally for additional conditioning or to build a toggler later.
    SYN480R.DATA --- Rin (47k) ---+--- Node A ---||--- Cfilter (10nF) --- GND | Rpulldown (100k) --- GND (optional, keeps node low)
    Node A -> both inputs of G1 (tie inputs A and B of Gate1 together) G1 output -> SÌ„ (S_bar) (input1 of Gate2)
    Gate2 (G2): inputs = SÌ„ and QÌ„ -> output = Q Gate3 (G3): inputs = RÌ„ and Q -> output = QÌ„
    RÌ„ --- Rpullup (100k) --- VCC (reset is idle HIGH; pull low to reset) (optional) RÌ„ can be wired to a reset pushbutton to GND or to an MCU pin
    Q -> Rbase (10k) -> base of 2N2222 (emitter GND; collector to one side of relay coil) Other side of relay coil -> +V (appropriate coil voltage) Diode across coil
    If you prefer MOSFET low side switching:
    Q -> gate resistor 100Ω -> gate of 2N7002 2N7002 source -> GND ; drain -> relay coil low side
    ... show more

    prishvin

    7 months ago

    1 Star

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    jarata

    10 months ago

    1 Star

  • Pet Tracker Reference Design 9HKu

    Pet Tracker Reference Design 9HKu

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    johanxs

    &

    2 years ago

    13 Comments

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    paraggole

    a year ago

    4 Comments

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    junior12345juni

    a year ago

    3 Comments

  • Pet Tracker Reference Design

    Pet Tracker Reference Design

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    ingegandara

    2 years ago

    2 Comments

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    yashwanth29

    a year ago

    1 Comment

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    jrhe90

    a year ago

    1 Comment

  • Pet Tracker Device xj2n

    Pet Tracker Device xj2n

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    obviousfancy

    a year ago

    1 Comment

  • Pet Tracker

    Pet Tracker

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    esila

    &

    a year ago

    1 Comment

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    septafiansyah

    a year ago

    1 Comment

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    ashikvinayakmurdeshwar

    a year ago

    1 Comment

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    nbh

    a year ago

    1 Comment

  • Pet Tracker Device

    Pet Tracker Device

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    kerry

    a year ago

    1 Comment

  • Pet Tracker Device 9dEx be42

    Pet Tracker Device 9dEx be42

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    junior12345juni

    a year ago

    1 Comment

  • Pet Tracker Device ofRf

    Pet Tracker Device ofRf

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
    ... show more

    seriousobi

    a year ago

    1 Comment

  • Pet Tracker Reference Design 159d 7f5b iDdA

    Pet Tracker Reference Design 159d 7f5b iDdA

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    cuantum

    a year ago

    1 Comment

  • Pet Tracker Reference Design gfw4

    Pet Tracker Reference Design gfw4

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    ankit1212

    a year ago

    1 Comment

  • Pet Tracker Reference Design pqmE

    Pet Tracker Reference Design pqmE

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    ankit1212

    a year ago

    1 Comment

  • Pet Tracker Reference Design kC3G

    Pet Tracker Reference Design kC3G

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    ankit1212

    a year ago

    1 Comment

  • Pet Tracker Reference Design hiXj

    Pet Tracker Reference Design hiXj

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    cesarwerley19

    2 years ago

    1 Comment

  • Pet Tracker Reference Design

    Pet Tracker Reference Design

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    arashahmadi

    2 years ago

    1 Comment

  • Pet Tracker Reference Design 8kfW

    Pet Tracker Reference Design 8kfW

    This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #referenceDesign #edge-computing #edgeComputing #stm #template #reference-design
    ... show more

    mohammad-nt

    2 years ago

    1 Comment