The is a specialized printed circuit board (PCB) module designed for high-performance electronic applications. Identified by the marking SN102 and manufactured under the KL series designation, this board is built to meet rigorous safety and thermal stability standards. The "94V-0" designation indicates that the substrate material complies with UL94V-0 flammability standards, ensuring the material self-extinguishes quickly when exposed to flame, making it suitable for consumer electronics and industrial control systems.
A key variation lies in the controller IC. Many HD44780-compatible modules have a contrast adjustment pin (pin 3, V0) that typically requires 0-5V. However, some versions (marked with an "S" on the main chip) may require a for correct contrast. This aligns with other community reports that some KL SN102 boards lack an on-board negative voltage generator for the contrast, requiring an external supply, such as -3V from two AAA batteries. kl sn102 94v 0 datasheet pdf 48 exclusive
: Optimized for 4 lines of alphanumeric text or distinct graphical blocks (frequently mapped as 102x64 pixels) The is a specialized printed circuit board (PCB)