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paper_bits:pb204_sync-sequencer [2019/11/01 09:06] admin created |
paper_bits:pb204_sync-sequencer [2019/11/01 09:28] admin [Manual] |
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| =====PB204 Sync Sequencer ===== | =====PB204 Sync Sequencer ===== | ||
| - | That is the latest 8 step sequencer for the Paper Bits. One can change steps, speed and the value of two independend CV output. | + | That is the latest 8 step sequencer for the Paper Bits. One can change steps, speed and the value of two independent CV output. Because it has an external trigger input one can easily synchronize them. It's evan possible to build an 16, 24 or 32 step sequencer out of two, three or more of them.\\ |
| + | |||
| + | ---- | ||
| + | ==== Manual ==== | ||
| **set the CV output:**\\ | **set the CV output:**\\ | ||
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| Depending on the CV switch selection it will be independently stored for the output 1 or 2.\\ | Depending on the CV switch selection it will be independently stored for the output 1 or 2.\\ | ||
| - | **set rhythem**\\ | + | **set the rhythm**\\ |
| set MODE switch to BEAT.\\ | set MODE switch to BEAT.\\ | ||
| To change the length of each step one select a value with the BEAT/CV potentiometer and in pressing the button for the selected step the selection will be assigned to that individual step.\\ | To change the length of each step one select a value with the BEAT/CV potentiometer and in pressing the button for the selected step the selection will be assigned to that individual step.\\ | ||
| It just works if Ex-Trigger is OFF.\\ | It just works if Ex-Trigger is OFF.\\ | ||
| - | The speed can be voltage controlled, too.\\ | + | **set the steps:**\\ |
| + | To change between 2 and 8 steps one can use the STEP potentiometer.\\ | ||
| + | If one select 1 step the Sync Sequencer goes into the **1 STEP MODE**. With the SPEED potentiometer one can now select each individual step. That makes it easy to program the sequencer.\\ | ||
| - | There are also 8 banks for storing notes and rhythm. In switching the preset on"ON" one can select them in pressing the "step buttons". It is not longer possible to change speed, steps ore the CV until the switch is off again. To change the presets stored in the chip one can change the tables in the Arduino program.\\ | + | **change the speed:\\ |
| + | The speed can be set withe the SPEED potentiometer or with an external control voltage. For that the Ex-Speed switch has to be set on ON and with a jumper one can select between BUS 1 and BUS 2 as the CV source.\\ | ||
| + | If the Sync Sequencer is in the **STEP 1 MODE** instead of the speed the control voltage will change the individual step.\\ | ||
| - | If one has choosen one step then the speed poti can be used to select the individul step - voltage controlled with an LFO it will make some nice oscillation patter. | + | **external trigger** |
| - | + | If one wants to use an external trigger signal one has to set the Ex-Trigger switch on ON and then use the Gate for the trigger input or instead of the TRIGGER jumper one can attache an jumper wire to the marked pin.\\ | |
| - | The board is based on an Arduino chip and therefore can be easily programmed and modified. One just need an USB to Serial converter or use an Arduino for that, too: [[arduino_clones:serial_adapter|The Arduino as a Serial Adapter]]. | + | |
| - | {{ :paper_bits:paper_bit_frames_192653.jpg? |}}\\ | + | |
| ---- | ---- | ||
| - | ==== Hardware ==== | ||
| - | {{:paper_bits:front.jpg?300|}} | + | ==== Paper-PCB ==== |
| - | {{:paper_bits:back.jpg?300|}} | + | |
| - | ---- | + | {{:paper_bits:pb204_syncsequenzer_04.jpg?400|}}\\ |
| - | ==== Paper-PCB ==== | + | {{ :paper_bits:pb204_syncsequenzer_04.zip |}}\\ |
| - | {{:paper_bits:pb201_stepsequenzer_21.jpg?600|}}\\ | + | |
| - | {{ :paper_bits:pb201_stepsequenzer_21.ai.zip|}}\\ | + | |
| ----- | ----- | ||
| Line 65: | Line 66: | ||
| ---- | ---- | ||
| ===== Software ===== | ===== Software ===== | ||
| - | Once you're board is ready, you will need to burn the arduino UNO bootloader on the chip (some chips are already burned from factory).\\ | + | Once you're board is ready, you will need to burn the arduino UNO bootloader on the Atmega chip (some chips already come with a bootloader).\\ |
| - | Follow the instructions:\\ | + | Follow the instructions to burn the bootloader:\\ |
| - | [[http://paperpcb.dernulleffekt.de/doku.php?id=avr_bootloader:bootloader&s[]=burn&s[]=bootloader|burn the bootloader]] | + | [[http://paperpcb.dernulleffekt.de/doku.php?id=avr_bootloader:bootloader&s[]=burn&s[]=bootloader|burn the bootloader]]\\ |
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| [[http://paperpcb.dernulleffekt.de/doku.php?id=arduino_clones:serial_adapter]]\\ | [[http://paperpcb.dernulleffekt.de/doku.php?id=arduino_clones:serial_adapter]]\\ | ||
| - | Open the Arduino software on your computer and upload the following code to the board: | + | Open the Arduino IDE software on your computer and upload the following code to the board: |
| - | {{ :paper_bits:step_test_programm_01.zip |}}\\ | + | {{ :paper_bits:syncsequencer_03.zip |}}\\ |
| - | That is a test program to check if the voltage devider for the switch and the step poti has the right value. | + | |
| - | Upload it to your board. Make shure the "beat select" button is off (should be to the right). Open the serial monitor on the Arduino IDE. When you turn the "step" poti the values should be between 0 and a certain maximum - and that is your important value (in my case 338)!\\ | + | |
| - | It could look like that:\ | + | |
| - | Step Poti = 250 Steps = 5 | + | |
| - | Step Poti = 250 Steps = 5 | + | |
| - | Step Poti = 250 Steps = 5 | + | |
| - | Step Poti = 338 Steps = 8 | + | |
| - | Step Poti = 338 Steps = 8 | + | |
| - | Step Poti = 338 Steps = 8 | + | |
| - | ... | + | |
| - | + | ||
| - | When you put a bit less than your maximum value in the code for the StepMax (for example 330) the "Steps" should be between 0 and 8 depending on the rotation of the potentiometer.\\ | + | |
| - | + | ||
| - | If you found the right value copy-paste that into the sequencer program, too and upload that to your board.\\ | + | |
| - | {{:paper_bits:paperbits_stepsequenzer_62.zip|}}\\ | + | |
| - | and voila! | + | and voila ready to step! |
| ---- | ---- | ||
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