fape/Chorus-RF-Laptimer-PCB

Chorus-RF-Laptimer-PCB

4in1 PCB for the Chorus RF Laptimer by Andrey Voroshkov https://github.com/voroshkov/Chorus-RF-Laptimer

https://www.youtube.com/watch?v=avLRJ5z0UP4

Features

• PCB for 4 Nodes (4 Pilots)
• easy extendable via JST XH cable (8 Pilots)
• 5V stepdown for Arduinos
• adjustable stepdown for RX Modules (use 3.5V to keep temperature low)
• 92 x 92mm mounting holes
• XT60 PowerIn
• 5V USB PowerIn (if you want to use a powerbank)
• stacked hardware - can be changed in seconds
• Buzzer Port to connect one Buzzer per Node

Changelog

ALL RELEASES

22.05.2018 - v3.1 beta released DOWNLOAD

• inital release
• i did not tested this PCB. To V3.0 i just added the Diodes and did cleaned it up a bit. V3.0 worked so far. Please report any issues!

Important

up to 4 nodes

You can also just use one or two nodes. All you haveto do is bridge TX/RX (see on silkscreen) of the other nodes Always use at least "Node1" because the voltage measurement is connected to this node.

5V power via USB

if you want to power the unit via 5V USB, please remove stepdown "Arduino" and bridge IN and OUT.

connect 2 or more PCBS

If you plan to connect more PCBS together, please alsways set the Loopback Jumper to the first PCB Then connect the next PCB via 6Pin wire. On the first PCB, bridge MV. On following PCBs please bridge GM. WiFi Module always connects to the last PCB.

What do you need (4 nodes)

• 1x 4in1 PCB
• 4x Arduino Pro Mini
• 4x RX5808 (with SPI mod)
• 12x 100 ohm 1206 SMD Resistor
• 4x 1k ohm 1206 SMD Resistor
• 1x 10k 1% ohm 1206 SMD Resistor
• 1x 1k 1% ohm 1206 SMD Resistor
• 4x 1n5817 smd 1A 20V do-214ac Schottky diode
• 2x 6 Pin JST XH 90° Connector
• 1x USB Breakout Board
• 2x Pin Jumper
• 1x DT-06 WiFi Module
• 1x 5V Stepdown
• 1x adjustable stepdown
• optional 6Pin JST XH cable for connecting two or more PCBs together
• 1x XT60
• 4x 3Pin Pin Header Socket
• 4x 6Pin Pin Header Socket
• 4x 12Pin Pin Header Socket
• 16x 2Pin Pin Header Socket
• manny Pin Header RM 2.54

(some links are affiliate links)

Software

https://github.com/voroshkov/Chorus-RF-Laptimer

Ordering PCB

you can order the PCB in china:

1. Go to www.seeedstudio.com
2. Upload gerber file
3. choose PCB color
4. add to cart
5. order

Detaild Tutorial how to order from seeedstudio here