Product overview
The RCTimer FTDI Tool V1.0 provides a USB-to-serial interface built around the FTDI FT232RL. Its physical layout uses a surface-mounted six-pin header on the underside, giving the revised board a more compact form. The connector pinout follows the FTDI cable arrangement for official Arduino and cloned 5V Arduino boards. It also supports general serial applications, making its integration role a connection between USB and a serial target. BLK and GRN markings provide alignment references corresponding to ground and CTS.
The board exposes DTR for automatic reset during Arduino sketch downloads. This function requires the target's reset pin to be routed to its six-pin connector; with that connection, downloading does not require a manual reset-button press. Separate TX and RX LEDs show serial activity. The supplied voltage setting is 5V, while a jumper arrangement on the rear permits 3.3V operation for both power output and IO level. Changing to 3.3V requires cutting the default trace and adding a solder jumper.
Specifications
| Specification | Value & conditions |
|---|---|
| Product model | FTDI Tool V1.0 |
| USB-to-serial controller | FTDI FT232RL |
| Connector architecture | Bottom-mounted SMD 6-pin header |
| Pinout | Matches the FTDI cable pinoutWith official Arduino and cloned 5V Arduino boards. |
| Serial application support | General serial applications |
| Reset control signal | DTR brought out instead of the FTDI cable's RTS |
| Automatic reset | Automatic target reset during sketch downloadArduino target has its reset pin brought out to a 6-pin connector. |
| Connector alignment markings | BLK corresponds to GND; GRN corresponds to CTSWhen aligning the board with an Arduino target. |
| Traffic indicators | TX and RX LEDs indicate serial traffic |
| Selectable voltages | 3.3V or 5V, configured through a rear jumperVoltage selection applies to both power output and IO level. |
| Default voltage configuration | 5VAs shipped. |
| Voltage conversion procedure | Cut the default trace and add a solder jumperTo change the default 5V configuration to 3.3V. |
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