Spider Keyer (Arduino Nano CW Keyer)     Version 2.0

Why Spider Keyer?

• Very simple and cheap ⁽¹⁾ hardware, yet powerful.
• Universal solution for any TCVR including boat anchors.
• Galvanically separated output, RF protected paddles input ⁽¹⁾.
• Open-source. The sketch (the source code for Arduino Nano) is published. You can modify it if you wish. ⁽¹⁾
• Easy to upgrade. Just select an option in HamRacer to create or upgrade your Spider Keyer. ^(1,2)
• Small and lightweight, portable.
• No battery or external source needed.
• Proved reliable in a heavy-duty QRO contesting environment. Both HF and VHF.
• Using processor interrupts to detect paddles touch provides an accurate and reliable hand keying. ⁽²⁾
• Faster TX->RX switching when sending from PC (no "hang" time envolved). ⁽¹⁾
• Optimized communication with PC (both sides developed by the same programmer).^(1,2)
• Can be used standalone with any 5V source (a mobile phone charger).

^{(1) Unlike WinKeyer (2) Unlike K3NG}

Schematics:

Spider Keyer was mainly developed as a companion to HamRacer logging software. Spider Keyer enables you to: Send CW from a PC (communicate both ways with the controlling SW) Send CW manually, iambic, using the paddles (both Curtis-A and Curtis-B modes) Set up basic properties such as lead-time, tail-time, hang-time, etc Set a side-tone separately for automatic and manual sending

Stand-alone Spider Keyer sourced through a mobile phone charger.

Stand-alone Spider Keyer sourced from a power bank.

  Video: Spider Keyer in action 

Make use of the kit to get a professionally looking result. More on the kit

Ready to do the things yourself? Visit Spider Keyer Home Made page for all the information you need. (PCB layout, the sketch for Arduino Nano, SprintLayout source files, etc)

Are you a developer? Visit Spider Keyer Specifications page for a detailed information. (A description of the communication protocol, etc)

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