16x1 Character Monochrome LCD Display Module with Backlight for Arduino - China Suppliers & Factory Direct

The Character Monochrome LCD Display Module (Model: HTM1601C) combines a compact 16-character by 1-line format with a built-in LED backlight, making it an excellent choice for space-constrained interfaces. Its transmissive display technology ensures sharp dark‑pixel characters against bright backgrounds in white, blue, or yellow‑green, delivering excellent visibility under both ambient light and low‑light conditions when the backlight is activated. At the heart of this Character Monochrome LCD Display Module lies the integrated SPLD780D controller, which is fully compatible with the industry‑standard HD44780. This means users can leverage existing Arduino libraries — such as LiquidCrystal — without rewriting any code. The module operates on a standard 5V supply and draws minimal current (typically 1–2 mA without backlight, and 20–30 mA with backlight), making the Character Monochrome LCD Display Module ideal for battery‑powered instruments, portable diagnostic tools, and solar‑assisted projects.

Another significant benefit is its wide operating temperature range of -20°C to +70°C, backed by rigorous factory testing. As a result, this Character Monochrome LCD Display Module performs reliably in applications ranging from outdoor kiosks and freezers to industrial control panels. For designers who need custom aesthetics, we offer multiple backlight colors (amber, red, blue) and various polarizer modes — including STN Positive, STN Negative, DFSTN, and FSTN Positive. The parallel interface supports both 8‑bit and 4‑bit modes, reducing GPIO pin usage on microcontrollers. Whether you need a simple temperature readout, a multi‑page menu, or a status display for CNC equipment, this module provides the contrast, speed, and long‑term reliability expected from a professional LCD manufacturer. With easy integration into Arduino, Raspberry Pi, and 8051‑based systems, the Character Monochrome LCD Display Module offers a perfect balance of performance, durability, and flexibility for both prototyping and production.

This Character Monochrome LCD Display Module is equally suitable for educational labs and production-grade equipment. For example, in a greenhouse controller, it can show CO₂ levels and humidity on one line, rotating every 2 seconds. In a retro gaming project, it outputs scores or error codes without consuming SPI/I²C buses.

• Q1 Why does my Character Monochrome LCD Display Module only show a row of black blocks after power-up?
  A1 The module is not initialized. Add a 50ms delay after 5V stabilizes, then send 0x30 three times. Use the Arduino LiquidCrystal library with correct pin assignments.
• Q2 Can I run this Character Monochrome LCD Display Module at 3.3V?
  A2 No. The SPLD780D controller requires 4.5V–5.5V. For 3.3V systems, use a level shifter or request a 3.3V version from the LCD manufacturer.
• Q3 The backlight drains my battery quickly. What should I do?
  A3 Control the backlight via a MOSFET (e.g., 2N7000) on a digital pin. Turn off backlight during idle — the Character Monochrome LCD Display Module retains characters without power.
• Q4 How do I display custom characters (e.g., degree symbol, battery icon) on this Character Monochrome LCD Display Module?
  A4 Use the CGRAM feature. Store up to 8 custom 5x8 dot patterns via commands starting at 0x40 + address. Data remains until power loss.
• Q5 Does the transmissive screen on this Character Monochrome LCD Display Module work under direct sunlight?
  A5 For outdoor use, order the optional STN Negative or FSTN Positive polarizer. The standard transmissive version is best for indoor or low-light conditions.
• Q6 Can I connect multiple Character Monochrome LCD Display Modules to one Arduino?
  A6 Not directly — each module needs its own parallel port. Use an I2C backpack (PCF8574) to save GPIO pins and address multiple modules on the same bus.