The Robo Project is a mobile robotic platform featuring a Particle Argon board, 4 motor-wheels controlled by L293D drivers, and an HC-SR04 ultrasonic sensor for obstacle detection. It's ideal for exploration, remote control, and robotics education. #allThingsRobotics #project #robot #L293D #car

The Robo Project is a mobile robotic platform featuring a Particle Argon board, 4 motor-wheels controlled by L293D drivers, and an HC-SR04 ultrasonic sensor for obstacle detection. It's ideal for exploration, remote control, and robotics education. #project #robot #L293D #car

The Robo Project is a mobile robotic platform featuring a Particle Argon board, 4 motor-wheels controlled by L293D drivers, and an HC-SR04 ultrasonic sensor for obstacle detection. It's ideal for exploration, remote control, and robotics education. #project #robot #template #L293D #car

Dual motor driver based on L293D IC #Sublayout #Module #template #project-template #motor #L293D #driver #motordriver

Dual motor driver based on L293D IC #project #motor #L293D #driver #motordriver #polygon

The Robo Project is a mobile robotic platform featuring a Particle Argon board, 4 motor-wheels controlled by L293D drivers, and an HC-SR04 ultrasonic sensor for obstacle detection. It's ideal for exploration, remote control, and robotics education. #project #robot #template #L293D #car

Voice Controlled Toy Car powered by the PocketBeagle single board computer and featuring two L293D motor drivers and two SPH0645LM4H-B MEMS microphones, this innovative project allows you to control your toy car's movements with just your voice. Perfect for hobbyists and DIY enthusiasts alike, this project is a must-have for anyone looking to take their electronic skills to the next level. #project #motorControllers

A precise stepper motor controller using the RP2350A MCU (Raspberry Pico 2) and L297/L298N drivers for two-phase bipolar motors. Great for robotics and automation applications. #RP2350 #Pico2 #StepperMotorDriver #L297 #L298N #Robotics #Automation #MotorControl

===================================================================== HAPTICA HARMONY B1 - FLEXIBLE PCB FABRICATION & ASSEMBLY SPEC Gestura AI LLC | 4-layer rigid-flex (flex + selective stiffeners) IPC-6013 Class 3 | ENEPIG finish ===================================================================== 1. BOARD SUMMARY - Flat outline 27.0 x 9.2 mm. Origin at center: X = -13.5..+13.5, Y = -4.6..+4.6. - 5 rigid (stiffened) facets in series along X, joined by 4 flexible fold/bend zones. - Folds into a finger ring (US 7-13); same PCB for all sizes, only the battery changes. - Build & electrically test FLAT, then fold into the ring and two-shot overmold. 2. FACET / STIFFENER MAP (X-span mm | width | stiffener | key parts) S1 Power -13.50..-10.20 | 3.30 | YES | U3 MCP73831, U4 LC05111, U5 TPS7A0233, D1; C1-C5,C29,C32; R21,R22,R_STAT Fold 1 -10.20..-9.20 | 1.00 | NO | bend hinge S2 RF -9.20..-3.50 | 5.70 | YES | U1 nRF54L15 (WLCSP-47, 0.30mm pitch), Y1 32MHz, Y2 32.768kHz, L1, FB1; C6-C11; TP1-TP9 Fold 2 -3.50..-2.50 | 1.00 | NO | bend hinge S3 Antenna -2.50..+2.76 | 5.26 | YES | ANT1 Johanson 2450AT42E010; L2-L4 / C12-C14 pi-match Fold 3 +2.76..+3.76 | 1.00 | NO | bend hinge S4 IMU-Touch +3.76..+7.55 | 3.79 | YES | U2 BMI270, U6 IQS7222A; C15-C19,C30,C31; R3,R4,R5,R14,R16-R20 Fold 4 +7.55..+8.55 | 1.00 | NO | bend hinge S5 Haptic +8.55..+13.50 | 4.95 | YES | U7 BOS1921, PZ1 piezo, L5; C20-C28; R1,R2,R7,R15 Total = 27.00 mm. ALL component pads land on a stiffened facet; NO components/pads in any fold. (S4/S5 widths reflect the U6<->U7 stiffener rebalance: each IC sits ~0.045 mm inside its stiffener; U7 pads are on-board and on-stiffener.) 3. LAYER STACKUP (4-layer flex, HDI 1+2+1) L1 Top : signal + ALL ICs (+ some passives) L2 In1.Cu : GND plane + ANT1 solid GND pour L3 In2.Cu : GND / signal L4 Bottom : signal + passives - Core: adhesiveless polyimide (e.g. DuPont Pyralux AP or equivalent). - Copper: 18 um (1/2 oz) rolled-annealed (RA), inner & outer (RA for flex durability). - Coverlay (polyimide) over flex regions; LPI soldermask on rigid facets ONLY. - HDI: laser microvias L1<->L2 (and L3<->L4) for U1 nRF54L15 WLCSP-47 (0.30mm pitch) escape; buried/core vias L2<->L3 (1+2+1). Via-in-pad (filled+capped) under the WLCSP. NO through-hole vias in WLCSP field. 4. IMPEDANCE / RF - 50 ohm single-ended controlled impedance on the RF trace (U1 -> pi-match -> ANT1), referenced to In1 GND. - Keep RF trace short, no stubs; pi-match (L2-L4 / C12-C14) tunable for VNA S11. 5. FOLD / BEND ZONES (the 4 flex hinges - what lets the board bend as designed) - 4 zones, each 1.0 mm wide (Fold 1-4 at the facet boundaries). Each: * NO stiffener (must flex) * NO vias (via keepout = 0.0 mm, enforced) * NO components * NO LPI soldermask -- polyimide coverlay only - Bend radius: strip wraps into the ring (bore ~18.2 mm -> ~9.1 mm neutral-axis radius). Min static bend radius >= 6x flex thickness (~0.2 mm -> >=1.2 mm); the ~9 mm ring radius is well within limits. - Copper across hinges: route PERPENDICULAR to bend axis (across fold, along Y); NO 90-deg corners (arced/teardrop transitions); STAGGER top/bottom traces; HATCHED (not solid) ground in bends to reduce stiffness & cracking. Minimize conductors crossing each hinge. 6. GROUNDING - Solid GND planes on In1 + In2. GND stitching vias around RF and between planes, placed ONLY on stiffened facets, NEVER in fold zones. - ANT1: solid GND pour on In1 as RF reference, with the ground keep-out under/around the radiator per the Johanson 2450AT42E010 datasheet (no copper under the antenna). [TODO: exact keep-out dims.] - Crystals Y1/Y2: local ground guard ring + ground under the parts; short, guarded oscillator traces. 7. STIFFENER MATERIAL & BONDING - Stiffener under each rigid facet (S1-S5): FR4 0.20-0.30 mm (or polyimide stiffener) bonded to the BACK (L4 side) of the flex. - Bonding adhesive: thermoset acrylic/epoxy bonding film (e.g. DuPont Pyralux bond-ply or equiv.) or a qualified PSA, applied ONLY under rigid facets -- NEVER across a fold zone. - Stiffener edges set back ~0.1-0.2 mm from each fold so the hinge stays fully flexible. 8. PLACEMENT & ASSEMBLY - ALL ICs on TOP side only -> single-sided reflow -> avoids double-reflow flex delamination. Passives may be on BOTTOM. - Assemble + reflow FLAT; electrically test FLAT (SWD bring-up, RF S11, sleep current) BEFORE folding. - Component bonding for ring reliability (flex + curvature stress): * Epoxy UNDERFILL on U1 WLCSP-47. * Corner-bond / edge-stake the large QFNs (U6 IQS7222A, U7 BOS1921); secure tall/edge parts. * Actuator + battery bonded per the enclosure (mechanical) spec. - Fold sequence: wrap the strip at the 4 hinges into the ring polygon AFTER assembly/test; then two-shot overmold. 9. SURFACE FINISH / CLASS / DFM - Finish: ENEPIG (fine-pitch WLCSP + solder reliability). Build to IPC-6013 Class 3. - Min trace/space per Class 3 + WLCSP escape (~75/75 um in escape, relaxed elsewhere -- confirm with fab). 10. KNOWN ITEMS / OPEN - Y2 (32.768 kHz LFXO, ECS-.327-6-34QCS-TR, ECX-34Q): vendor 2-pad footprint VERIFIED correct (two 1.1 x 1.9 mm pads, 2.5 mm pitch; matches 3.2 x 1.5 mm datasheet). The single Flux "Overlapping Copper" DRC is a spurious schematic-symbol contact (phantom 3rd pin on a 2-pad part); NOT in the footprint/Gerbers; does NOT affect fabrication. NO part swap required. - Facet boundary outlines (S1-S5) are 0.15 mm dashed rectangles currently on the Top layer (reference geometry). For clean fab, move them to a documentation/silkscreen layer (not copper) and add per-facet silkscreen labels (S1 Power ... S5 Haptic). S1's outline is present and identical to S2-S5. - Remaining DRC = 163 airwires = unrouted nets (routing is the next phase), not defects. =====================================================================

CNC hydraulic press brake controller with STM32H743, ADS1256, 5x DAC8501 ±10V outputs, 3x AD598 LVDT interfaces, isolated 24V digital inputs, 100BASE-TX Ethernet, watchdog, E-stop hardware disable, and 4-layer 220mm x 160mm PCB architecture. Domains: field 24V I/O, precision analog, logic/Ethernet. Safety behavior: E-stop and valve-disable force all analog command outputs to 0V-safe state and disable field enables; watchdog and power-good supervisor reset MCU on comms or rail faults. PCB constraints: L1/L4 signal+components, L2 solid GND, L3 power plane, 1.0mm board inset margin, RJ45 at edge, field connectors on opposite edge, isolation corridor between field wiring and logic/Ethernet, 4x M4 plated mounting holes inset 10mm from corners.

TO127P2020X500X2100-15 Half Bridge (4) Driver DC Motors, Relays, Solenoids, Stepper Motors Bipolar 15-Multiwatt L298N Multiwatt-15 STMicroelectronics In Stock None https://pricing.snapeda.com/search/part/L298N/?ref=eda STMicroelectronics Aliases: undefined

Dual motor driver based on L293D IC #Sublayout #Module #template #project-template #motor #L293D #driver #motordriver

Welcome to your new project. Imagine what you can build here.

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

Dual motor driver based on L293D IC #Sublayout #Module #template #project-template #motor #L293D #driver #motordriver

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project

This project is a dual channel DC motor controller based on L298N Template #motorController #L298N #controller #motor #DC #referenceDesign #project #polygon