Do you have plans to make it work with Acaia Lunar?

Unfortunately, BLE espresso scales all have their own protocols and each has to be handled individually. This will never be possible for all scales - if manufacturers do not disclose protocols or do not provide a sample. Regarding the Lunar, I've asked acaia for a sample but received no reply so far. My recommendation at his point is the Skale 2, which has an open protocol. Alas, with a height of 3.5cm, it is higher than desirable.

A firmware upgrade for ito's Wifi chip is available. I consider this a critical upgrade for users outside Germany. It improves the factory reset feature (so that in the rare case of a faulty configuration due to flash memory corruption, the module does not have to be returned to service). Download.

> plan on releasing an Ito board for gear pumps?

There are no plans for ito and gear pumps.

• Gear pumps are still too expensive. Even pumps from China (e.g. from topsflo) cost 200$ + shipping + VAT. Easily over 300$ total. Fluid-o-Tech's pumps are even more expensive.
• They require a lot of space. Most users wouldn't be able to fit a gear pump + 24V power supply + motor control board (if required, i.e. no controller board in pump)
• The cheaper models don't have the ability to reach pressures over 9-10bar
• The cheaper models have a fairly low MTBF, e.g. 3000h
• They shouldn't run dry. Running dry (as could happen in tank machines) could cause damage to bearing surfaces.
• The models with analog control input are not easily controlled by a microcontroller. Analog voltage is not a microcontroller-friendly signal type.
• Most importantly, their physical properties seem a mismatch for pressure profiling: They run at high rpm (up to or over 3000rpm), which means that there is a significant inertia moment. They can not perform output power changes as speedily as vibe pumps. Also - I believe - they don't go all the way smoothly down to 0 RPM/0bar, limiting preinfusion options.

The predecessor of ito, arturo, had a 0-5V DAC output for the purpose of driving gear pumps but due to the high price and the other disadvantages, I never actually bought one to investigate the performance. Another technically-minded user (mamu) in my home forum did, 5 years ago, and wrote Arduino pressure profiling code for it. In direct comparison, the pressure profiling seemed not as good as with a much cheaper vibe pump: https://www.kaffee-netz.de/threads/sab- ... 578/page-3