~/workshop $ ls -la ./inventory
The Bench Manifest
total 51 · 6 categories · every part documented to the pin
Everything that lives in the component drawers, counted and written down — because a part you can't find is a part you don't own. Each entry opens to the full field manual: specs, pinouts, wiring notes, and the gotchas learned the hard way.
Microcontrollers7 parts
- ×4AITRIP ESP32-C3 Mini Development Board ("SuperMini")A tiny (22.5×18mm) ESP32-C3 breakout board following the widely-cloned "ESP32-C3 SuperMini" reference layout — single-core RISC-V, WiFi + Bluetooth LE, USB-C with native USB serial, 16-pin 2.54mm header (unpopulated pin headers ship separately, visible alongside the boards in the order photo).untested
- ×4Heltec WiFi LoRa 32 V4 (HTIT-WB32LAF)Heltec's current-generation LoRa dev board: an ESP32-S3 paired with a Semtech SX1262 LoRa radio, a 0.96" OLED, and onboard lithium battery + solar charge management, all on a 51.7×25.4mm module with a PC casing that integrates the 2.4G antenna.untested
- ×2LILYGO TTGO T-Display (ESP32, 1.14" LCD, CH9102F)An ESP32 development board with a built-in 1.14" IPS LCD (ST7789 driver, 135×240) soldered directly to the board — no wiring needed to get a screen running, unlike a bare ESP32 dev board paired with a separate display.untested
- ×1Pimoroni Tiny 2350A tiny RP2350-based dev board in Pimoroni's "Tiny" form factor (successor to the RP2040-based Tiny 2040) — USB-C, a STEMMA QT/Qwiic I2C connector, a programmable RGB LED, and a user-assignable BOOT button, all on a board small enough to disappear inside a project.untested
- ×1Raspberry Pi Pico 2 WThe wireless variant of Raspberry Pi's second-generation Pico board: an RP2350 microcontroller (dual Cortex-M33 or dual RISC-V Hazard3 cores, switchable) paired with an Infineon CYW43439 for WiFi 4 + Bluetooth 5.2, in the same 21×51mm 40-pin DIP-style castellated footprint as the original Pico/Pico W.untested
- ×1RP2040-Zero Development BoardA tiny (23.5×18mm) castellated-edge dev board built around the Raspberry Pi RP2040 chip — the same silicon family as the Raspberry Pi Pico 2 W already in this library, but RP2040 (not RP2350) and without WiFi/Bluetooth radios.untested
- ×1Waveshare RP2350-LCD-1.28A round MCU board built around the Raspberry Pi RP2350 chip with a 1.28" round IPS LCD, a 6-axis IMU, and Li-ion battery charge management all integrated on one small (Φ~32.4mm active display) circular PCB.untested
Displays6 parts
- ×10.91" White OLED Display (Bare Panel, Unsoldered)A bare 0.91" OLED display panel with its own flexible FPC tail, not yet mounted to any driver/breakout PCB — "unsoldered" per the label.untested
- ×10.96" I2C OLED Display Module (SSD1306-class)An assembled OLED breakout: a small blue driver PCB with an I2C address-select solder jumper (0x3C/0x3D, standard SSD1306 addressing) and a display panel attached via a folded FPC ribbon.untested
- ×116x2 Character LCD with I2C Backpack ("1602IIC")A standard 16-character × 2-line HD44780-compatible character LCD (negative white text on blue backlight) with an I2C "backpack" board soldered directly onto its 16-pin parallel header.untested
- ×116x2 Character LCD with I2C Backpack (QAPASS panel / "inland" backpack)A second, physically distinct 16x2 character LCD + I2C backpack unit from the 1602IIC/HLF8574T display already in this library — same functional design (HD44780-compatible glass + PCF8574-family I2C backpack), different brand pairing (QAPASS-branded LCD glass, Micro Center's own "inland" I2C backpack board).untested
- ×4GC9A01 1.28" Round LCD Module (M128-240240-RGB-7-V1.0)A 1.28" circular IPS TFT display, 240×240 resolution, driven by the GC9A01 controller over SPI. No touch layer.untested
- ×1TM1637 4-Digit 7-Segment Display Module (HW-069)A 4-digit, 7-segment red LED display (0.36" digit height) driven by a TM1637 serial LED driver IC — the classic "clock display" module used in countless digital-clock and counter tutorials.untested
Sensors5 parts
- ×5GY-271 3-Axis Magnetometer / Digital Compass ModuleA small 3-axis magnetometer (digital compass) breakout board.untested
- ×5GY-BME/BMP280 Breakout (4-Pin I2C, BMP280 Populated)A small breakout board for Bosch's BMP280 barometric pressure + temperature sensor (the board's dual "BME/BMP280" silkscreen means the same PCB layout is also sold with the humidity-sensing BME280 populated instead — Alex's unit has the BMP280 variant, which measures pressure and temperature only, no humidity).untested
- ×4Heltec L76K GNSS ModuleA small multi-constellation GNSS receiver (GPS + GLONASS + BeiDou + QZSS) built around the Quectel L76K chip, sold by Heltec as a purpose-made accessory for their WiFi LoRa 32 V4 and Mesh Node T114 boards.untested
- ×5INMP441 I2S MEMS Microphone Module (EC Buying, 5pcs)A high-performance, low-power, omnidirectional MEMS microphone with a digital I2S output.untested
- ×8Soil Moisture Sensor — HW-080 Probe + HW-103 Comparator ModuleThe common two-board Chinese soil moisture sensor kit: a forked PCB probe (HW-080) that gets pushed into soil, wired to a separate comparator/driver board (HW-103 V0.1.2) that conditions the probe's raw resistance reading into both an analog voltage and a threshold-triggered digital signal.untested
Actuators5 parts
- ×13V DC Hobby Motor (Unbranded)A small brushed DC motor, identified by Alex as 3V rated.untested
- ×14-Channel 5V Relay Module (Songle SRD-05VDC-SL-C)A 4-channel relay board using genuine Songle SRD-05VDC-SL-C mechanical relays — a very common, well-documented relay for hobby/Arduino projects.untested
- ×1SG90 Micro Servo (9g)The extremely common 9-gram plastic-gear hobby servo — used everywhere from RC models to countless Arduino "sweep" tutorials.untested
- ×1Small DC Motor with Integrated Battery Mount (LEO92G0000)A small DC motor with a built-in spring-contact battery mount — a compact metal bracket with two mounting holes clips a battery directly against a spring contact, powering the motor without any separate wiring to a battery holder.untested
- ×50Xiaoyztan 160Ω Passive Electromagnetic BuzzerA small electromagnetic (coil-driven) passive buzzer — unlike an "active" buzzer, this type has no internal oscillator; it just moves a diaphragm in response to whatever AC/PWM signal is fed into it, so pitch is fully controllable by the driving signal's frequency.untested
Power7 parts
- ×10-99BATT 503035 LiPo Battery (3.7V 500mAh)A single-cell lithium polymer pouch battery in the "503035" size-code form factor (see Key specs). Printed figures are internally consistent (3.7V × 500mAh = 1.85Wh exactly), a good sign the label is accurate.untested
- ×10Dorhea MT3608 DC-DC Step-Up (Boost) Converter ModuleA small adjustable boost (step-up) converter board built around the MT3608 IC — takes a lower DC input voltage and steps it up to a higher, adjustable output via an onboard potentiometer.untested
- —NXD 103450 LiPo Battery (3.7V 3000mAh)A single-cell lithium polymer pouch battery in the standard "103450" form factor (a size code, not a brand-specific number — see Key specs).untested
- ×2OCTelect 702030 LiPo Battery (3.7V 400mAh, 2pcs)A pair of small single-cell lithium polymer batteries in the "702030" size-code form factor, marketed for smartwatch-class builds.untested
- ×5TP4057 Li-ion Charging & Protection Board (Type-C, 5-Pack)A small single-cell Li-ion charge board built around the TP4057 charge-management IC, with USB-C input and separate battery (B+/B-) and load (OUT+/OUT-) pads — meaning it can charge a cell and pass regulated output to a load at the same time (a "charging and discharging board," per the label, as opposed to a bare charge-only board).untested
- ×1Unbranded DC-DC Converter Module (Dual 220µF/50V, Unmarked IC)A small blue DC-DC converter board of unconfirmed topology (boost vs.untested
- —YT Ø80mm Round Solar PanelA small round epoxy-encapsulated solar cell, 80mm diameter, mounted on a black backing with two solder-tab terminals, wired out to a 2-pin JST-style connector (red/black leads visible in the supplied photo).untested
Bench stock21 parts
- kit9Values Mini Micro Slide Switch Kit (90pcs)An assortment box of miniature SPDT (single-pole double-throw) slide switches — the small panel-mount toggle-style switches with a sliding knob, commonly used for power on/off selection, mode selection, or any two-position manual control on a project enclosure.untested
- ×1Assorted 5mm LED JarA jar of assorted standard 5mm through-hole LEDs in at least four colors (red, yellow, blue, green), diffused/colored-lens style.untested
- —Dupont Jumper Wire Assortment (Male-to-Male)A loose bundle of male-to-male Dupont jumper wires in assorted colors (red, yellow, blue, white, gray, black, orange, teal, purple observed) and lengths, used to make breadboard-to-breadboard and breadboard-to-module connections.in use
- ×10DWEII 4Ω 3W Mini Speaker (10pcs)A small full-range passive speaker with a JST 1.25mm 2-pin wired connector, intended for small electronics/DIY audio projects.untested
- ×28EC Buying 16mm Waterproof Metal Push Button (28pcs, 7 Colors)A panel-mount momentary push button with a metal shell, 16mm mounting hole diameter — the "arcade/industrial round button" style, self-resetting (non-locking).untested
- ×10EG STARTS 24mm Arcade Push Button (10pcs)A classic arcade-cabinet push button with a built-in micro switch, 24mm mounting hole — the standard "MAME cabinet" button size, hole-compatible with Sanwa OBSF-24/OBSC-24/OBSN-24 series buttons.untested
- kitElectronic Components Kit (1400pcs Assorted)A generic grab-bag assortment kit bundling six categories of basic through-hole components: LEDs, diodes, transistors, resistors, ceramic capacitors, and electrolytic capacitors.untested
- kitFgruh M2/M3/M4/M5 Hex Socket Button Head Bolt Assortment Kit (2200 Pcs)An assortment box of hex socket button head bolts in M2/M3/M4/M5, plus matching hex nuts and washers for each size. 10.9-grade alloy steel.untested
- ×2Full-Size Solderless Breadboard (830 Tie-Point)A standard full-size solderless breadboard: two terminal-strip blocks (columns 1–63, rows a–e and f–j) split by a central trough, flanked by two power-rail pairs (one per side, +/− marked in red/blue) running the board's full length.untested
- ×1Gikfun 12×12×7.3mm Tact Tactile Push Button Switch Kit (25pcs)A kit of 12×12mm square momentary tactile switches — the same common footprint as the IRUW kit already in this library ([[iruw-switch-button-knob-kit]]) — each fitted with a colored plastic cap for color-coded, ergonomic pressing.untested
- ×2Half-Size Solderless Breadboard (400 Tie-Point)A smaller companion to the full-size 830-point breadboard also in this library — one terminal-strip block (rows a–e and f–j) flanked by two power rails, roughly half the length of the full-size board.untested
- kitInland 0.47µF-1000µF Electrolytic Capacitor Assortment Kit (13 Values, 200pcs)A single-category assortment card of radial electrolytic capacitors, 13 values spanning 0.47µF to 1000µF.untested
- kitIRUW 12×12×7.3mm Tactile Switch + Knob Kit (12pcs)A kit of 12×12mm square tactile push-button switches (the common "12x12" momentary tactile switch footprint used across countless DIY panels and keyboards), each paired with a colored plastic push-cap ("knob") that snaps over the tactile switch's own small actuator button — giving a larger, more ergonomic, color-coded button face than the bare switch alone.untested
- kitKadrick M2/M3/M4/M5 Threaded Inserts Kit (520 Pcs)An assortment box of brass knurled heat-set threaded inserts, sized M2 through M5.untested
- ×6KY-040 Rotary Encoder with Push Button + Knob Cap (QSYZAIL, 6pcs)A breakout board for a mechanical incremental rotary encoder with an integrated momentary push-button (press the shaft to click).untested
- ×1Leftover Passive Components JarA catch-all container of passive components and small hardware left over from earlier projects — potentiometers, capacitors, resistors, connector headers, and at least one small hand tool (a flathead-style driver visible in the supplied photo).owned
- ×2MAX98357A I2S Class-D Amplifier Breakout (2pcs)A digital (PCM/I2S) input Class D mono amplifier.untested
- ×1UL1007 22AWG Solid-Core Hookup Wire, 6 Spools / 6 ColorsA 6-color set of UL1007-spec solid-core copper hookup wire, one spool per color, for point-to-point wiring and prototyping — the same wire class as the Dupont jumper assortment but sold as raw spooled wire rather than pre-terminated jumpers, so it can be cut to length and soldered directly (e.g.untested
- ×1Universal 4-Key Push Button Switch Module (Geeriu)A small breakout board carrying 4 independent tactile push-button switches (labeled K1–K4), each brought out to its own pin header — a simple 4-button keypad for MCU/breadboard projects (menu navigation, direction pad, mode select, etc.).untested
- ×6VEXUNGA 12mm Momentary Waterproof Push Button (Green)A generic 12mm panel-mount momentary pushbutton — the button connects a 2-wire circuit only while physically pressed (normally-open, spring-return).untested
- kitWH148 B10K Linear Potentiometer w/ Knobs (ALLECIN, 4pcs)A standard 3-pin (single-turn, no built-in switch) rotary potentiometer — the classic "volume knob" style variable resistor used for analog control input (volume, brightness, threshold tuning) or as a voltage divider feeding an ADC pin.untested
// no parts match — try a shorter pattern