Comparison page
A4988 vs BSS138 Level Shifter
Side-by-side selection notes for specs, ecosystem readiness, known issues, and data confidence. This page is generated from structured component fields instead of a hand-written article.
A4988
Projects needing Stepper and 3D printer with a commonly available power part.
BSS138 Level Shifter
Projects needing Level shifting and I2C with a commonly available power part.
Specification Matrix
CategoryPowerPower
MakerAllegro MicroSystemsGeneric
CoreNot specifiedNot specified
ClockNot specifiedNot specified
WirelessNot specifiedNot specified
Voltage3.3V3.3V
LibrariesArduinoArduino
Price$1.00 - $4.00$0.30 - $1.50
Known Tradeoffs
A4988
- Breakout boards may use different pin labels or regulator choices
- Clone modules can differ from the original datasheet part
BSS138 Level Shifter
- Breakout boards may use different pin labels or regulator choices
- Clone modules can differ from the original datasheet part