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Bluetoothing to an Android Tablet
05/18/2014 at 14:26 • 0 commentsToday I tried pairing my UART-to-Bluetooth adapter to a Nexus 7 tablet to see how it works. On the tablet I used BlueTerm, an open-source terminal emulator for communicating with any serial device using a bluetooth serial adapter.
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A Foolish Attempt at Soldering an FPC Connector with 0.5mm Pitch, and a Prototyping PCB Design
05/18/2014 at 09:12 • 0 commentsMechanical drawing of my EPD ePaper display GDE021A1 is shown below. Signals to the display are connected via a 24-pin flex flat cable. The pitch between pins is only 0.5mm. A suitable matching connector is MOLEX 52435-2471 FPC RCPT 24PIN 1ROW.
On Thursday I tried soldering thin wires directly on the MOLEX connector I got from Farnell. However, my attempt was very naïve because the pitch between pins on the connector is only 0.5mm. So I failed.
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Bluetooth Module (Re-)Investigation
05/18/2014 at 09:10 • 0 commentsSome five years ago I bought a nice UART-over-Bluetooth adapter module. The module emulates a serial port (UART) over a Bluetooth connection. All necessary chips and an antenna are mounted on a small PCB board depicted below.
The type I’ve got is the cB-OEMSPA310i-04 with an internal antenna. The module requires only a 3.3V power.
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ePaper Display Module
05/18/2014 at 09:08 • 0 commentsLook what I’ve got by post today from our Chinese comrades at ‘Good Display‘ factory: a nice small 2.04-inch electrophoretic display (EPD), or better known as ePaper/eInk display or ‘electronic paper’.