EnviroDIY | Guy McCarthy | Activity https://www.envirodiy.org/members/guymc/activity/ Activity feed for Guy McCarthy. Wed, 29 Apr 2026 09:19:07 -0400 https://buddypress.org/?v= en-US 30 hourly 2 3800132f68d397bf585c0d5686fe5b2f Guy McCarthy posted a new activity comment https://www.envirodiy.org/activity/p/2944/#acomment-2946 Mon, 08 Jan 2018 16:28:29 -0500 Oh, right… I meant to say, the local storage device is a 47L16:
http://ww1.microchip.com/downloads/en/DeviceDoc/20005371C.pdf

In reply to - Guy McCarthy posted an update in the group Data Logger Developers The DS Mini is based on a PIC32MX150F128 processor, with 128K Flash and 32K RAM. The BLE transceiver is a RN4871 module, with the protocol stack in […] ]]> 0bc09eb794e1a58488e041d96d82a2c2 Guy McCarthy posted an update in the group Data Logger Developers: The DS Mini is based on a PIC32MX150F128 processor, with 128K […] https://www.envirodiy.org/activity/p/2944/ Sun, 07 Jan 2018 23:13:03 -0500 The DS Mini is based on a PIC32MX150F128 processor, with 128K Flash and 32K RAM. The BLE transceiver is a RN4871 module, with the protocol stack in firmware. So processor memory is not much of an issue. The local storage is kind of cool; it’s an EMC1001 with 16K of static RAM. That allows fast access with minimal power consumption. Upon…[Read more]

]]> 2 645cc2e16784fc520282efabe6816e9c Guy McCarthy posted an update in the group Data Logger Developers: OK, here is another attempt to add the […] https://www.envirodiy.org/activity/p/2943/ Sun, 07 Jan 2018 22:57:06 -0500 OK, here is another attempt to add the photo
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]]> 0 5db8a1e47de02c8271eafa420f4d59e4 Guy McCarthy posted an update in the group Data Logger Developers: Thanks for the suggestions. Here's a photo of the Data […] https://www.envirodiy.org/activity/p/2941/ Sat, 06 Jan 2018 20:48:33 -0500 Thanks for the suggestions. Here’s a photo of the Data Station Mini, which accepts external sensors in the mikroBUS format (as in “Click” boards from MikroElektronika.) It’s based on a PIC32MX150 processor, with a digital temp sensor, EEPROM storage, and an efficient power circuit. There’s a AA battery holder on the back side. This is essentially…[Read more]

]]> 1 947c5f9b2e6f38defd733b5bab6fcf42 Guy McCarthy posted an update in the group Data Logger Developers: I'm developing a couple of inexpensive data loggers (open […] https://www.envirodiy.org/activity/p/2935/ Thu, 04 Jan 2018 04:52:02 -0500 I’m developing a couple of inexpensive data loggers (open source, of course) and looking for some input on sensors. What types are commonly used, and do they require 3V or 5V?

The low-end board is powered by a single AA and uses local memory for storage, with BLE for control and data transfer. It can provide 3V to external sensors. The mid-range…[Read more]

]]> 2 b99d24035bd6db3378d681a7b9905966 Guy McCarthy became a registered member https://www.envirodiy.org/activity/p/2872/ Fri, 01 Dec 2017 19:04:11 -0500 0