Round color LCD board comes in Raspberry Pi RP2040 or ESP8266 flavor (Crowdfunding)

Roundy is a board with a 1.28-inch round color LCD with 240 x 240 resolution that is offered with either a Raspberry Pi RP2040 MCU or an ESP-12E WiFi module, with the variants respectively called RoundyPi and RoundyFi.

Both boards come with a micro USB port for power and programming, a button for flashing the firmware, and six pins with power signals and four GPIOs. One difference is that the Raspberry Pi RP2040 board includes a MicroSD card for data storage.


Roundy specifications:

  • MCU / module
    • RoundyPiRaspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ up to 133 MHz with 256KB SRAM
    • RoundyFiESP-12E module with ESP8266 microcontroller @ up to 160 MHz with 160KB SRAM, 4MB SPI flash
  • External storage (RoundyPi only) – MicroSD card socket
  • Display – 1.28-inch round LCD with 240 x 240 resolution, 65k colors; GC9A01 SPI display driver. (It appears to be that model)
  • USB – 1x micro USB port for power and programming; Note: RoundyFi includes a CP2102 USB to TTL chip
  • Expansion – 6-pin header with 4x GPIO, 3.3V, and GND
  • Misc – Flash/Boot button
  • Power Supply – 5V via micro USB port, 3.3V via header
  • Dimensions
    • Display: 32.4mm diameter
    • RoundyPi board – Fits in a ~43.6 x 37.5 mm rectangle
    • RoundyFi board – Fits in a ~46.5 x 37.5 mm rectangle

SB Components does not provide any detail about software support, but we can see some blurry screenshots with the Arduino IDE and MicroPython code. Some applications listed by SB Components include wearables, automobile speed gauge, pressure gauge, temperature sensor monitor, digital weighing scale, etc…

The Roundy boards are now offered on Kickstarter with pledges starting at $28 for RoundyPi and $34 for RoundyFi. Those are early bird rewards, and the retail price is expected to be 35 GBP (~$47.5) and 45GBP (~$54.25) respectively. There are also bundle with two or more of the boards.

If you’ve read about SB Components recently, that’s because there are managing at least two other ongoing Kickstarter crowdfunding campaigns namely StackyPi Raspberry Pi RP2040 board with Raspberry Pi Zero form factor and UHF HAT for Raspberry Pi. Kickstarter does not allow running multiple projects at the same time or launching a second project before fulfilling your first one. What happens here is that the UHF HAT for Raspberry Pi campaign is run under the official SB Components account, while the two other projects are run under the name of developers working for SB Components. You may not see any SB Components marking on the board, I found out about Roundy on SB Components’ twitter account.

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5 Replies to “Round color LCD board comes in Raspberry Pi RP2040 or ESP8266 flavor (Crowdfunding)”

  1. They should have built this with the ESP32-C3 mini module. Then it could be made for under $10. LCD is about $4.00 in small quantity.
    I see LCD for as low as $2, but those don’t match the one in photo.

    This is constructed using a single PCB so the LCD flex cable has been hand soldered to the PCB under the display, and then double side tape likely used to mount. It is not the LCD from Amazon, that one is way too tall.

    Since ESP mini is smaller than module they chose, there may have been room for LCD connector on back. Feed to flex cable via slot in PCB.

  2. OK that’s amusing but I don’t see any real use for this. In addition, an ESP12E module is huge, there are ESP8285-based modules which are much smaller and which could simplify the design (or the chip could even directly be soldered).

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