Smart Medication Dispenser Design
0:00
Work completed
- Project description updated to “Smart Medication Dispenser Controller – ESP32-Based with Dual Stepper Drivers, DS3231 RTC, Robust 12 V Power Tree, and Comprehensive Sensor/UI Interfaces”.
- Added major ICs:
- Added power components:
- Reverse-polarity protection and TVS diode on the 12 V input
- 5 V switch-mode buck converter stage
- SGM2212-3.3XKC3G/TR as U2 for 3.3 V LDO
Tasks not done
- Creating or saving the mermaid system architecture diagram (star-ground, domains) — you’ll need to supply that diagram manually.
- Adding the NPN transistor for the buzzer driver.
- Populating supporting passives:
- Bulk (100 µF) and high-frequency decoupling caps (0.1 µF, 1 µF)
- Buck converter inductors
- I2C pull-ups (4.7 kΩ)
- Flyback diode for the buzzer
- RC-debounce footprints for the reed switch (DNP)
- Adding connectors and headers:
- 12 V barrel jack and motor (VMOT) connectors
- I2C, UART, GPIO expansion, programming header, I2C OLED header
- Wiring nets (power rails, I2C, STEP/DIR, sensors, LEDs, buzzer)
- Schematic ERC and layout preparation (stackup, board shape, star-ground copper pour)
Success criteria review
- Complete schematic coverage: ❌ not yet (passives, connectors, net wiring missing)
- PCB layout (100×80 mm, motor/logic segregation, star-ground, trace widths): ❌ not yet
Next recommended step
Add the NPN transistor and flyback diode for the piezo buzzer driver, then proceed with placing all supporting passives in the power subsystem.
135 days
Ready.
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const p1TerminalId = "5237503d-4662-b83a-7859-31969858b9c0"; //P1
const p2TerminalId = "e5e04a27-c5c4-f2e6-5799-708eb3f01464"; //P2
const p1Terminal = flux.getNodeById(p1TerminalId, "elementTerminal");
const p2Terminal = flux.getNodeById(p2TerminalId, "elementTerminal");
const outputVoltage = flux.createOutputNode("vout");
const inputVoltage = flux.createOutputNode("vin");
const current = flux.createOutputNode("I");
const partTypeProperty : any = flux.properties.find((prop) => prop.name === "Part Type");
//setup event
flux.on("setup", () => {
const capacitance = Number(flux.properties.find((prop) => prop.name === "Capacitance")?.value || 0.000001);
flux.simulationModel = simModel(capacitance);
if (partTypeProperty) {
Enter to Rename, Shift+Enter to Preview
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
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Generic Capacitor
Smart Medication Dispenser Controller – ESP32-Based with Dual Stepper Drivers, DS3231 RTC, Robust 12 V Power Tree, and Comprehensive Sensor/UI Interfaces
Properties
F
Non-Polarized Capacitor
SMD_0603_1608Metric
C
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Arrow | $15.86–$19.31 |
Digi-Key | $25.82–$49.78 |
LCSC | $12.96 |
Mouser | $38.39 |
TME | $25.60 |
Verical | $27.58 |
Controls
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