BTM Controls Unveils BTM-MICRO-8 — A Full Network I/O Controller in a Deck-of-Cards Footprint

FOR IMMEDIATE RELEASE

BTM Controls shrinks a full network I/O node down to a card-deck footprint — PoE, dual-radio wireless, precision analog, and relays in a package no one else ships.

AUSTIN, TX — September 2, 2026 (SMWIRE) — BTM Controls today announced the BTM-MICRO-8, a miniature universal I/O controller that packs a complete networked control node into a deck-of-cards footprint. The device enters production alongside the company’s broader controller line in Q1 2027.

At 3.4 cubic inches — roughly the size of a deck of cards, with a U.S. quarter for scale — the BTM-MICRO-8 carries capabilities normally found in controllers several times its size: isolated Power-over-Ethernet (IEEE 802.3af) with 10/100 Ethernet, dual-band wireless (Wi-Fi plus LoRa), four universal analog inputs (0–10 V, 0–30 V, or 4–20 mA), two digital/pulse inputs, two potential-free relays, a 1-Wire sensor bus, I²C expansion, and a 9–36 VDC auxiliary input.

It is, BTM Controls says, the only controller in its footprint with this much capability.

Everything a control node needs — nothing it doesn’t

The BTM-MICRO-8 was designed around one question: what does a modern field controller actually need? The answer drove a clean, no-compromise channel model:

Four universal analog inputs — software-configurable for 0–10 V, 0–30 V, or 4–20 mA loops, with precision front-end protection for real-world field wiring.
Two digital / contact / pulse inputs — for dry contacts, flow pulses, and event counting.
Two potential-free SPST-NO relays — rated for control switching, not mains.
Isolated PoE Ethernet (IEEE 802.3af) plus onboard 10/100 Ethernet — one cable delivers both power and data.
Wi-Fi and LoRa — dual SMA-connected radios mean the same unit can join a facility LAN or ride a long-range wireless mesh. No other controller in this class offers both.
1-Wire and I²C — plug in temperature sensors or expand to nearby peripherals without extra hardware.
9–36 VDC auxiliary input — OR-ed with PoE, so it runs on almost any site power.
USB-C — service and configuration only, keeping field power paths clean and isolated.

Built for installers, priced for scale

Every BTM-MICRO-8 ships with an integrated local dashboard, secure first-boot provisioning, REST APIs, and MQTT support — so it drops into existing networks without proprietary gateways or cloud lock-in. The wide DC input, PoE option, and isolated field connections let a single SKU cover HVAC, lighting, access, irrigation, energy monitoring, and industrial sensing applications.

“The industry has been told you can’t get real I/O, real connectivity, and real isolation in a small package — so everyone keeps bolting bigger boxes to the wall,” said Kevin Dill, founder of BTM Controls. “We designed the MICRO-8 to prove that’s a compromise no one has to make. In a footprint smaller than a deck of cards, it does what used to take a DIN-rail monster: precision analog, dry-contact and pulse counting, two relays, PoE, Wi-Fi, and LoRa — with the field protection to survive actual installation. No controller exists in this footprint with this much capability.”

Pricing and availability

The BTM-MICRO-8 will be available in Q1 2027 alongside BTM Controls’ other controller platforms. Full specifications, documentation, and early-access inquiries are available now at BTMControls.com.

About BTM Controls

BTM Controls designs compact, network-native I/O controllers for commercial and industrial automation. Based just outside of Austin, Texas, the company builds hardware that installers can actually install — wide input ranges, protected field connections, open protocols, and no cloud lock-in.

Media Contact:
Kevin Dill
BTM Controls
[email protected]
BTMControls.com

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BTM Controls Unveils BTM-MICRO-8 — A Full Network I/O Controller in a Deck-of-Cards Footprint