Wireless Bootloader

We are working on a wireless bootloader for Avoccado° that uses the NRF24 plus AVR micro controller platform. It’s tricky to debug these endeavours because we don’t have debugging equipment and lack AVR platform experience. If you have experience with this and want to help out, please get in touch.

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Open Energy Micro Camp 2014

Avoccado° was featured at the Open Energy Micro Camp. The cozy event was a prototype for POC21 – a five week camp that will take place in Paris during August and September this year. The event aims to patch up society with Open Source technology, rather than engaging in political debates on whose fault it is that the climate is degrading. The Open Energy Micro Camp was hosted by Open State in the offices of 10hoch16 and WigWam in Berlin.

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Solder Stencils

Avoccado° Solder Stencil

I’m back in the workshop today creating a solder stencil for the Avoccado° Nora PCB boards.

To create the stencil I took the Gerber files from the Avoccado° Nora panel and extracted the solder paste layer. From this vector file I generated the G-Code to be read and milled by the CNC machine.

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Bed of Nails

Avoccado° Test Jig

Today in the workshop I’m working on a ‘bed of nails’ test jig. The test jig is a fixture which holds multiple Avoccado° PCBs at once, clamping them down onto a bed of pogo pins.

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Avoccado° Nora

Avoccado° Nora

Nora is our most recent approach to cramming in the features from recent prototypes, using only two layers and populating all of the components on one side. Nora is our smallest board with a LiPo charger yet, measuring just 23.5 mm x 23.5 mm.

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Avoccado° Kane

Avoccado° Kane is a micro version with a square inch PCB and SMD parts on both sides. This is a bare minimum configuration to be used as tiny receiver nodes in electrical appliances.

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Open Source Task Force Meetup

Open Source Task Force Meetup

We met to talk about regenerative (cradle-to-cradle) design packaging for products, possible open source approaches for this and a possible collaboration on Avoccado°. This first meeting was mainly for exchanging expertise, getting to know each other and exploring the field as well as possible strategies.

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Prototype with an ADXL345 Accelerometer

This Avoccado° prototype does not contain a gyroscope sensor and can only sense accelerations and gravitational force. The ADXL345 from Analog Digital is cheaper and uses less energy when active vs. the MPU6050 from InvenSense (which contains an additional MEMS gyroscope sensor).

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