DISP102 – Board for Small Intelligent Displays

Small Intelligent Display for :

  • Small Industrial IO on MODBUS or CAN networks
  • Small BMS IO
  • Machine Displays / Smart Meters / Smart Readout
  • Can be interfaced to IIC, SPI, UART sensors
  • Onboard 1.8″ ST7735 160×128 RGB TFT or Separate off board display connected by IDC ribbon cable (DispIDC-20)

Design available for download, you can manufacture your own PCBs and manage your supply chain

DISP102 PCB TFT18 OnBoard Display

DISP102 PCB TFT18 OnBoard Display

DISP102 PCB Micro

DISP102 PCB Micro

  • JST SH 1mm Wired IO
  • DispIDC-20 – IDC connector for other displays
  • Simple to load firmware using free ST tools
  • Board Size 47mm x 35mm
For further information see the
DISP102 RGB 1.8″ TFT / DispIDC-20 STM32F091RC – Detailed Product Page
DISP102 PCB DispIDC-20 TFT13

DISP102 PCB DispIDC-20 TFT13. My camera doesn’t do the 1.3″ IPS display justice, the display is sharp and crisp to the eye.

This is a 1.3″ 240×240 IPS display, connected by ribbon cable, instead of the onboard 1.8″ 160×128 TFT display. This enables the DISP102 PCB to support many different SPI displays, and creates options for physical arrangement.

We are calling the off board display connection format DispIDC-20. Options include :

  • 1.8″ ST7735 TFT 160×128
  • 1.8″ ST7735 TFT 160×128 with touch panel
  • 1.3″ ST7789 IPS 240×240
  • 2.0″ ST7789 IPS 320×240
  • 2.4″ TFT 320×240

The DispIDC-20 connection enables a number of different display configurations – see the product page for further information

DEV010B oLED STM32F091RC – FW01 – MODBUS SLAVE DISPLAY with IO – release 20191021_1500

We have released a new version of FW01 for the DEV010B oLed Display board (20191021_1500).

Configurable operation using MODBUS registers.

For further information see the
DEV010B RGB 1.69″ OLED STM32F030RC – Detailed Product Page
DEV010B RGB 1.69″ OLED STM32F091RC – FW01 – MODBUS SLAVE DISPLAY with IO
DEV010B STM32F091RC OLED FW01 Display

DEV010B STM32F091RC OLED FW01 Display

DEV010B Updates

We have updated the SCH to HW V1R02
We have added a BOM (.ods .xls .pdf) for HW V1R02
We have added a new Assembly PDF for contract manufacture

all included with the Gerbers Download

For further information see the
DEV010B RGB 1.69″ OLED STM32F030RC – Detailed Product Page

We have a new demo APP for the IOB002 (IOB002 uses the DEV010B display).

This app has a MODBUS slave driver, and uses 4 registers to display values on the display. Contact michael@furzy.com for information.


We are working on DEV010B FW01. Contact michael@furzy.com for information.

  • Modbus Slave – J4 U5 for UART and RS485 DEN controls
  • User can change Modbus address
  • User can change Modbus Baud Rate (9600, 19200, 38400, 57600, 115200)
  • Modbus Register Set
    • String Identification Registers
    • Data Register Set – use Modbus Read Registers 0x03 to obtain all data in a single request – response cycle
    • Display Object Setup Register Set (display numeric values or strings)
    • Analog Input Object Setup Register Set (Analog inputs on J8 and J6)
    • Digital IO Object Setup Register Set (digital pins on J8 and J6)
    • IIC Sensor Object Register Set (IIC on J4)
    • System Control Register Set

Led Matrix Display

I picked up some colour LED modules for daylight readable displays.

From Aliexpress Store Shenzhen LCCL Opto-Electronic Science & Technology Co., Ltd.

Shown below driven by a LPC1768. (The normal commercial application uses FPGA to handle an array of these display to build a large screen)

The displays use a serial -> parallel led drive, data in is 6 bits wide (2 rows clocked in at once, RGB), and uses two 74HC138s to select 2/32 rows. This appears to be a fairly typical arrangement for this type of display. (the smaller displays only clock in a single row, but the principle is the same)

AliExpress Colour LED Display Module driven by LPC1768 The display shown is a P4 (4mm pitch between pixels), P3 is also readily available.

I intend to enclose this in an IP rated box with a few basic IO and RS485 and CAN ports.

There will be a single screen and a 3 screen version (That would be a LPC1768 for each display) giving a 96 pixel x 64 pixel display.

Please contact me if you would like any further information.