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development specimen

V4 desktop radio

A desk radio with its own status face

A Heltec V4.2 board-level specimen with a proven local display, physical control, Reticulum carriage, and a stock-compatible RNode channel.

Current boundary This is a development specimen, not a finished kit or offered product.

exact recipe state

Board
Heltec WiFi LoRa 32 V4.2
Processor
ESP32-S3
Radio
SX1262
Controls
Built-in 128 x 64 OLED, one user button, and status LED
Power
USB bench power was used for the receipts; battery and off-grid runtime are not qualified
Antenna
A complete antenna recipe and placement receipt are still open
Enclosure
No Merely enclosure file or mechanical receipt is approved
Form
desktop radio

Retinue firmware UI · radio-mirror

Try the V4 radio face.

The screen is drawn by radio-mirror, which runs Retinue's own firmware UI (radio-face's renderer and Controller) at retinue revision b49df89, compiled to WebAssembly. Its status is retinue's fixed receipt fixtures; it is not connected to a radio. Read radio-mirror at that revision.

128 × 64 OLED · status LED

What the screen says

  1. STATUS, RAD OK
  2. BOARD: HELTEC V4
  3. FIRMWARE: PHY V10
  4. HOST: ATTACHED
  5. UPTIME: 4H 5M
  6. LOCAL MODEM TRUTH

Tap the fitted V4 button to step forward. Hold it for the menu; tap to move and hold to select.

With the screen focused, the A and B keys are the radio's buttons: hold them as long as you would the real ones, and the firmware's press classifier decides tap, hold or chord.

Pages, menu, buttons and LED follow Retinue's firmware Controller. Local radio detaches the host and leaves the four local pages; Attached host adds IDENTITY, LINKS, PEERS and VERIFY from retinue's host fixture; Radio fault is the V4 firmware's SX1262 init fault, which preempts every page.

The catalog V4 has one fitted button. The two-button face is an enclosure the same firmware supports.

Enable JavaScript to operate the controls. Each screen below was rendered by radio-mirror from Retinue's firmware UI at retinue revision b49df89.

Every screen the V4's button reaches

Rendered at site build time by radio-mirror from Retinue's firmware UI at retinue revision b49df89, with retinue's receipt fixtures and the host attached; the fault is the V4 firmware's own radio-init fault. Each image's text is radio-face's text projection of the same screen.

  • STATUS, RAD OK; BOARD: HELTEC V4; FIRMWARE: PHY V10; HOST: ATTACHED; UPTIME: 4H 5M; LOCAL MODEM TRUTH
    status
  • POWER, USB; SOURCE: USB; BATTERY: 73% 3.920V; DISPLAY: ON; CPU SLEEP: DISABLED; WAKE BUTTON
    power
  • RADIO, RAD OK; FREQ: 906.875MHZ; SF / BW: SF11/250K; TX POWER: 17DBM; PROFILE: LONGFAST; CR 4:5 SYNC 2B
    radio
  • TRAFFIC, RAD OK; TX / RX: 128/342; HOST QUEUE: 3; LAST RX: -97/6.2; LAST TX: OK 247B; HOST DIRECT DELIVERED
    traffic
  • IDENTITY, HOST; NAME: HERALD; ADDR: 4C9F..BD08; ROLE: NODE; NODE UP: 3H 48M; HOST-SUPPLIED NODE TRUTH
    identity
  • LINKS, HOST; ADMITTED: 2/4 UP; IFAC: ON; QUEUE: 3; MODEM: ATTACHED; HOST DIRECT DELIVERED
    links
  • PEERS, HOST; ESQUIRE ^ 2M; MARSHAL ^ 1H; OUTRIDER VIA 12M; +1 MORE
    peers
  • MENU, LOCAL; BRIGHTNESS (SELECTED); STATUS DETAIL; VERIFY; DISPLAY OFF; MOVE / SELECT / BACK
    menu:brightness:0
  • VERIFY, HOST; 4C9F03AA 77E21B0D; 92C4E8F1 5A36BD08; COMPARE IN PERSON
    verify
  • DISPLAY OFF, LOCAL; KEY TO WAKE; CPU SLEEP IS SEPARATE
    display-off
  • FAULT, E01; SX1262 INIT; SEE HOST LOG; LOCAL RADIO FAULT
    fault

build it

Board-level development specimen. The published firmware ledger below records the exact V4 installation and recovery evidence; enclosure, power, antenna, and assembled-product work remain open.

What the complete recipe still needs

Printed enclosure

Publish the source file, print settings, fasteners, port clearances, thermal observations, and an assembly receipt.

Power assembly

Select and test the battery, protection, charging path, connector, runtime, and replacement instructions.

Antenna assembly

Name the exact antenna and connector path, then record placement, strain relief, and RF acceptance.

Sale readiness

Complete the authorization record, labeling, instructions, supplier traceability, product safety work, and assembled-product review before enabling purchase.

Read the checked hardware receipt on GitHub ↗

verify it

A proof says exactly what happened. It does not silently stand in for range, routing, loss, battery runtime, or product qualification.

proven

On-device status face

The fitted OLED, short press, long press, menu, display-off path, and consumed wake press passed physical acceptance.

proven

Bidirectional Reticulum carriage

The image exchanged a byte-exact 4 KiB Reticulum Resource in both directions against the T114 while the UI remained active.

proven

Owner installation

The published V4 ledger retains installer and recovery receipts for the public cabled route. Firmware proof does not complete the enclosure, power, antenna, or sale recipe.

network support

This ledger records demonstrated network behavior. It is independent of whether a one-click installation recipe or assembled product is ready.

demonstrated

Reticulum

Real RNS 1.4.0 configures and powers the V4 RNode channel, while reference Reticulum and the Rust stack validate one another over real RF.

demonstrated

Meshtastic

Sennet text transmitted through V4 direct-PHY firmware was accepted, decrypted, and rebroadcast by a stock Meshtastic node.

demonstrated

MeshCore

Tucket exchanged authenticated adverts, encrypted text, acknowledgements, and reciprocal routes with official MeshCore companion firmware.

install firmware

Firmware belongs to the owner. Installation recipes are tracked separately from network support, and one SX1262 radio runs one selected personality at a time.

Read the published Retinue package index ↗

radio authorization

authorization record open Protocol support and software licensing do not replace equipment authorization. The authorization record must be reviewed before sale.
Exact device
The exact equipment grant, grantee record, and conditions for this board revision have not yet been accepted into the catalog.
Antenna conditions
The authorized antenna set, connector path, placement, and labeling conditions remain to be documented.
Operating envelope
Retinue enforces selected regional frequency and power limits; each alternate firmware image must carry limits appropriate to this exact hardware.

buy assembled hardware

The purchase control comes last, after the recipe, evidence, network support, installation paths, and radio authorization.

not offered for sale

This development specimen has no purchase link. Sale waits for a complete recipe, assembled-product testing, and a reviewed authorization record.