![]() The GND pin on the emonTH is nearest to the centre, and is marked on the PCB. ![]() Therefore, the LEDs will point upwards when the module is plugged into the emonTx. The GND pin on the emonTx is marked on the front panel - it is nearest to the RJ45 socket. See Figure 2 on the data sheet for the pin identification on the FTDI module - GND is at the opposite corner to the voltage selector. You should fit the connector so that it is on the same side as the USB socket.īe sure to select the correct voltage with CN14: 3.3 V. Prolific recommends following vendor cable. The 6-pin right-angle connector in position CN11 is the correct one for the emonTx & emonTH. In case you suspect a counterfeit chip inside, you may also contact Prolific to provide the vendor information. Power output to external logic 5V/3V3 (set by a removable jumper)Īll the information needed to assemble the programmer is on the FTDI data sheet:.Supported baud rates: 300 bps to 3 Mbps.A pre-assembled unit is available for a small fee - just select the relevant check-box when ordering. ![]() Soldering required (see the 'Assembly Guide' below). Micro-USB cable is required, sold separately. USB to UART programmer for uploading Arduino software sketches and reading serial data from from all OpenEnergyMonitor hardware units: emonPi, emonTx, emonTH etc.įor operating instructions and driver installations for Linux, Mac and Windows operating systems, follow this link.
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