BenchKit vs PCBmaker

BenchKit puts four everyday electronics calculations in one focused, offline iPhone app. RESISTOR CODES Decode 3, 4, 5, and 6-band axial resistors by tapping the bands on a drawn resistor, or SMD codes (3-digit, 4-digit, EIA-96, R notation). See the tolerance range, IEC marking code, and standard E-series match, with a warning when a reading is probably reversed. PCB TRACE WIDTH Estimate minimum internal or external copper trace width from current, copper weight, and allowed temperature rise, in millimeters and mils, or the current a given width can carry. Results outside the IPC-2221 chart range are flagged as extrapolations. VOLTAGE DROP Voltage drop, voltage at the load, power lost in the wiring, and the share of supply that reaches the load. Enter the round-trip resistance, or wire gauge (AWG or mm²), length, and conductor temperature. VOLTAGE DIVIDER Ideal unloaded output voltage, divider current, per-resistor dissipation, output resistance, and what an optional load does to the output. Or enter a target voltage and get the closest E24/E96 resistor pairs with their worst-case output. Type values the way engineers write them: 4k7, 2R2, 100m, 3V3; the keyboard has keys for the letters. No account. No ads. No analytics. No network connection. English, Simplified Chinese, and Japanese. BenchKit is a quick estimation tool. Always verify production designs against component datasheets, applicable standards, simulation, and physical validation.

PCBmaker lets you design PCBs right on your iPhone: build a circuit from ready-made modules, route it automatically, then etch the board at home or order it from a factory. FREE FEATURES • Build circuits from ready-made modules: Arduino, ESP32, sensors, displays, motor drivers, voltage regulators and many more. • Connect pins automatically or by hand. • The Circuit Inspector (DRC) catches wiring mistakes. • The autorouter routes the traces for you. • Preview the board and the etching negative. • Export a 1:1 Print Negative (PDF) for home etching with toner transfer or a laser: top and bottom sides, mirroring, drill holes, outline, labels and laser kerf compensation. • Use starter projects with a parts list and an Arduino sketch. PCBmaker PRO, production exports: • Gerber ZIP ready to order from JLCPCB • KiCad netlist (.net) • JLCPCB BOM (CSV) Made for hobbyists, students and makers who solder their own boards and want to get from idea to working PCB fast. PCBmaker by Terlecki Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: [https://www.apple.com/legal/internet-services/itunes/dev/stdeula/](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/]