
Eccel C2R Pepper Module

Funktioner
- Low cost RFID Reader with MIFARE® Classic® in 1K, 4K memory, ICODE, MIFARE Ultralight®, NTAG21x
- lifetime firmware updates
- Command interface via UART and USB
- UART-baudrate op til 921600 bps
- High-speed USB-UART emulated interface
- USB HID keyboard emulation
- Konfigurerbar RGB LED-indikator til RFID-begivenheder
- 6 konfigurerbare GPIO'er
- Stand-alone tilstand (afstemning)
- Høj transponder læse- og skrivehastighed
- -25°C til 85°C driftsområde
- Multiple intern reference voltages
- RoHS-kompatibel
- CE (RED) and FCC compliant.
- ISED/PSE and other approvals were easily obtained
Ansøgninger
- Adgangskontrol
- Overvågning af varer
- Approval and monitoring of consumables
- Forudbetalingssystemer
- Styring af ressourcer
- Kontaktløse datalagringssystemer
- Evaluering og udvikling af RFID-systemer
Beskrivelse
The Pepper C2 Module RFID reader is the advanced successor to the Pepper C1 Module, maintaining full compatibility with most of the tag types and protocols supported by its predecessor. It offers lifetime firmware updates, ensuring continuous improvements and security. The device features a configurable USB interface capable of emulating either a UART interface or functioning as a HID profile, such as keyboard emulation. Additionally, the Pepper C2 Module is cost-optimized compared to previous C1 modules, providing enhanced functionality at a competitive price point.
Elektrisk specifikation
Absolut maksimale vurderinger
Belastninger ud over de absolutte maksimale værdier, der er angivet i tabellen nedenfor, kan forårsage permanent skade på enheden. Disse er kun stressklassificeringer og henviser ikke til den funktionelle drift af enheden, der bør følge de anbefalede driftsbetingelser.
| Symbol | Parameter | Min | Maks | Enhed |
| Ts | Opbevaringstemperatur | -40 | +125 | °C |
| Ta | Omgivelsestemperatur | -40 | +85 | °C |
| VDDMAX | Forsyning voltage (pin 8) | 4.5 | 5.5 | V |
Driftsforhold
| Symbol | Parameter | Min | Typ. | Maks | Enhed |
| Ts | Driftstemperatur | -25 | 25 | +85 | °C |
| H | Fugtighed | 5 | 60 | 95 | % |
| Vdd | Forsyning voltage (pin 8) | 4.5 | 5 | 5.5 | V |
Current consumption (VDD = 5V)
| Symbol | Parameter | Typ. | Maks | Enhed |
|
Irfon |
RF field on (no tag, polling 200ms) | 97 | 110 | mA |
| RF field on (tag in the RF field, polling 200ms) | 295 | 315 | mA | |
| RF field on (continuously) | 300 | 322 | mA | |
| RF field on (tag on antenna) | 316 | 336 | mA | |
| Irfon | RF-felt slukket | 23 | 30 | mA |
| Dvaletilstand | RF-felt slukket | 2 | 3 | mA |
A metal environment near the antenna can increase the current consumption of the RFID Reader. Therefore, it is recommended to ensure a minimum 500mA of current from the power supply.
Kom godt i gang
IO og periferiudstyr

Pinout beskrivelse
| Antal | Navn | Beskrivelse |
| 1 | NC | Leave pin unconnected |
| 2 | UART2_TX | Secondary UART/Console logs data transmit pin |
| 3 | KNAP | Button pin (active low) |
| 4 | UART2_RX | Secondary UART/Console Logs data receive pin |
| 5 | UART0_TX | Main UART data transmit pin |
| 6 | UART0_RX | Main UART data receive pin |
| 7 | NULSTIL | Active low reset pin (3.3V Level) |
| 8 | VDD | Hovedstrømforsyning – anbefalet værdi 5.0V |
| 9 | GND | Jord |
| 10 | NC | Leave pin unconnected |
| 11 | USB- | USB Data Negative Signal |
| 12 | USB + | USB Data Positive Signal |
| 13 | GPIO2 | Generelle formål Input Output pin no. 2 |
| 14 | GPIO1 | Generelle formål Input Output pin no. 1 |
| 15 | RS485_DE | UART2 RS485 Driver Enable pin |
| 16 | RS485_RE | UART2 RS485 Receiver Enable pin |
| 17 | GPIO0 | Generelle formål Input Output pin no. 0 |
| 18 | GND | Ground for RFID Antenna. Can be connected to the main ground when on-board RFID antenna is used |
| 19 | RFID ANT1 | RFID antenna signal no. 1. Do not use when on-board antenna connector is used. |
| 20 | RFID ANT2 | RFID antenna signal no. 2. Do not use when on-board antenna connector is used. |
*All digital signals are at 3.3V level
Typisk forbindelse
The Pepper C2R Module can be connected to a host (computer or another device) using USB or UART0. Both interfaces can be used for communication using the binary protocol described below.
The Module also has secondary UART (UART2) available. Using this connection, the user can view output logs which contain additional information about temporary executing commands. The default configuration is : baud: 115200, Data: 8 bit, Parity: none, Stop bits: 1 bit, Flow Control: none. Data lines can be configured to work using any free GPIO’s available on the module. Additionally, it can be used to operate the RS485 interface with hardware flow control using the DE and Re lines (pin no. 15 and 16).
The Pepper C2 device can be connected directly to a host computer using a standard USB interface. In the same way it can be powered to operate as a standalone device by using power sources such as a USB charger or power bank.
The computer operating system should recognize this device as a virtual com port or USB serial device and it should appear in Windows device manager as a COM port. 
Figure 3-1. Typical connection
Hint – If you don’t have a USB-UART converter to see the logs on the UART2, you can temporarily change the default log interface from UART2 to UART0 in the Cx-client UART configuration button. Then, the logs should be available on the USB port
HID keyboard emulation
The RFID reader can be configured to enable USB port emulation of the HID Keyboard profile. With this functionality, UID numbers of tags read during polling are transmitted as a keyboard input stream to any host device that accepts USB keyboards. To activate this profile, the Cx-client application should be used to select the HID Keyboard profile for the USB port within the USB/UART configuration menu.
Once the device is configured via the USB/UART0 interface in HID Keyboard mode, further connection to this port using the Cx-client application becomes unavailable. In order to temporarily restore the binary protocol, the BUTTON pin should be held at the LOW state for 3 seconds. During this process, the device’s RGB LED blinks once every second and flashes red when the default UART emulation profile has been temporarily restored. Additionally, configuration options allow enabling automatic transmission of the ENTER key after each UID is sent. 
Fabriksindstilling
To restore the device to its factory default settings, the button pin must be held at LOW state for 10 seconds. The device will indicate the completion of the factory reset process by flashing the RGB LED in white.
Mekanisk dimension
Pepper C2R Module
Alle mål er i mm.
Konfiguration og funktionsbeskrivelse
- Here is the document describing configuration, communication protocol, commands, and all functions of the Pepper C2 reader: https://eccel.co.uk/wp-content/downloads/Pepper_C2/C2-software-manual.pdf
- Eccel tilbyder en række gratis værktøjer og biblioteker klar til at blive downloadet fra dette link: https://eccel.co.uk/support-free-libraries/
Note: Should you experience any difficulties integrating our readers into your device, please contact us at technical@eccel.co.uk. Our team can provide integration support and, where required, adapt the software and/or hardware to meet specific customer requirements. We specialize in developing custom solutions. Further information is available at: https://eccel.co.uk/custom-design/
RF-emissioner og følsomhedsgodkendelser
Eccel have tested and declared that this product meets all the requirements of the relevant RF directives (RED) to be declared CE (European Union) and UKCA (United Kingdom) compliant. Please see our declaration of conformity for this on the downloads tab of the product webpage. This product is designed to be incorporated into products easily and quickly, such that those products can pass any national or regional statutory RF requirements and certifications such as FCC (USA), ISED (Canada) and PSE (Japan) for example. This product is designed to meet all statutory RF requirements applicable worldwide using the most cost-effective but robust design methodology.
Eccel is pleased to offer customers very cost-effective certification for their end equipment that incorporates this product. Prices start from £3K per approval/ certification. Please contact us for more details at sales@eccel.co.uk.
FCC-ERKLÆRING
FCC advarsel
Dette udstyr er blevet testet og fundet i overensstemmelse med grænserne for en klasse B digital enhed i henhold til del 15 af FCC-reglerne. Disse grænser er designet til at give rimelig beskyttelse mod skadelig interferens i en boliginstallation. Dette udstyr genererer, bruger og kan udstråle radiofrekvensenergi og kan, hvis det ikke installeres og bruges i overensstemmelse med instruktionerne, forårsage skadelig interferens i radiokommunikation. Der er dog ingen garanti for, at der ikke vil forekomme interferens i en bestemt installation. Hvis dette udstyr forårsager skadelig interferens på radio- eller tv-modtagelse, hvilket kan fastslås ved at slukke og tænde for udstyret, opfordres brugeren til at forsøge at rette op på interferensen ved en eller flere af følgende foranstaltninger:
- Drej eller flyt modtagerantennen.
- Øg afstanden mellem udstyret og modtageren.
- Tilslut udstyret til en stikkontakt på et andet kredsløb end det, som modtageren er tilsluttet.
- Kontakt forhandleren eller en erfaren radio/tv-tekniker for at få hjælp.
Forsigtig: Enhver ændring eller modifikation af denne enhed, der ikke udtrykkeligt er godkendt af producenten, kan annullere din ret til at betjene dette udstyr.
Denne enhed overholder del 15 af FCC-reglerne. Driften er underlagt følgende to betingelser:
Denne enhed må ikke forårsage skadelig interferens, og (2) denne enhed skal acceptere enhver modtaget interferens, inklusive interferens, der kan forårsage uønsket drift.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Country Code selection feature to be disabled for products marketed to the US/Canada. This device is intended only for OEM integrators under the following conditions: The antenna must be installed such that 5mm is maintained between the antenna and users, and the transmitter module may not be co-located with any other transmitter or antenna, As long as the two conditions above are met, further transmitter testing will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.
Vigtig bemærkning: I tilfælde af at disse betingelser ikke kan opfyldes (f.eksample, certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. End Product Labeling The final end product must be labeled in a visible area with the following: “Contains FCC ID: 2ALHY-C2RMODULE”
Integrationsvejledning til værtsproduktproducenter i henhold til KDB 996369 D03 OEM Manual v01r01
Liste over gældende FCC-regler
CFR 47 FCC Part 15 Subpart C has been investigated. It is applicable to the modular transmitter.
Specifikke driftsbetingelser – Antenneplacering inden for værtsplatformen
Dette modul er selvstændigt modulopbygget. Hvis slutproduktet vil involvere tilstanden Multiple simultan transmitting eller forskellige driftsbetingelser for en selvstændig modulær transmitter i en vært, skal værtsproducenten rådføre sig med modulproducenten for installationsmetoden i slutsystemet.
Begrænsede modulprocedurer
Ikke relevant
Spor antennedesign
Ikke relevant
Overvejelser om RF-eksponering
Enheden er blevet vurderet til at opfylde generelle krav til RF-eksponering. Enheden kan bruges i bærbar eksponeringstilstand uden begrænsninger.
Antennetype og forstærkning
This radio transmitter FCC ID: 2ALHY-C2RMODULE has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.
| Antenne nr. | Type antenne | Frekvensområde |
| C2-RFID-ANT1356-70×70-200 v1.0 | PCB track loop | 13.56 MHz |
| C2-RFID-ANT1356-40×40-350 v1.0 | PCB track loop | 13.56 MHz |
| C2-RFID-ANT1356-25×25-400 v1.0 | PCB track loop | 13.56 MHz |
| C2-RFID-ANT1356-10×50-500 v1.0 | PCB track loop | 13.56 MHz |
Oplysninger om overensstemmelse med slutproduktmærkning
When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily removed. If not, a second label must be placed on the outside of the final device that contains the following text: “Contains FCC ID: 2ALHY-C2RMODULE”. The FCC ID can be used only when all FCC compliance requirements are met.
Oplysninger om testtilstande og yderligere testkrav
This transmitter is tested in a standalone portable RF exposure condition and any co-located or simultaneous transmission with other transmitter(s) or for mobile products class II permissive change re-evaluation or new FCC authorization. Host manufacturer installed this module with single modular approval. The test of radiated emission and spurious emission according to FCC part 15C, 15.209, 15.207 requirement, only if the test result comply with FCC part 15C, 15.209, 15.207 requirement, then the host can be sold legally.
Yderligere test, del 15 Subpart B Ansvarsfraskrivelse
Denne transmitter modulære us-testet som et undersystem, og dens certificering dækker ikke FCC Part 15 Subpart B-reglerkravet gældende for den endelige vært. Den endelige vært skal stadig revurderes for overholdelse af denne del af reglerne, hvis det er relevant. Så længe alle ovenstående betingelser er opfyldt, er yderligere transmittertest ikke påkrævet. OEM-integratoren er dog stadig ansvarlig for at teste deres slutprodukt for eventuelle yderligere overensstemmelseskrav, der kræves med denne modulære installeret.
Bemærk EMI-overvejelser
The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user’s manual of the end product that integrates this module. The host integrator must follow the integration instructions provided in this document and ensure that the composite system end product complies with the requirements by a technical assessment or evaluation to the rules and to KDB Publication 996369. The host integrator installing this module into their product must ensure that the final composite product complies with the requirements by a technical assessment or evaluation to the rules, including the transmitter operation and should refer to guidance in KDB Publication 996369. OEM/Host Manufacturer Responsibilities OEM/Host manufacturers are ultimately responsible for the compliance of the Host and Module. The final product must be reassessed against all the essential requirements of the FCC rule such as FCC Part 15 Subpart B before it can be placed on the US market. This includes reassessing the transmitter module for compliance with the Radio and RF Exposure essential requirements of the FCC rules.
Sådan foretager du ændringer – Vigtig bemærkning
I tilfælde af at disse betingelser ikke kan opfyldes (fampved visse bærbare konfigurationer eller samplacering med en anden sender), anses FCC-godkendelsen ikke længere for at være gyldig, og FCC-id'et kan ikke bruges på det endelige produkt. Under disse omstændigheder vil OEM-integratoren være ansvarlig for at revurdere slutproduktet (inklusive transmitteren) og opnå en separat FCC-autorisation.
Revisionshistorie
| Revision | Dato | Ændringer |
| 1.0 | 22-okt-2025 | Første udgivelse |
| 1.1 | 03. december 2025 | Current consumption section updated |
| 1.2 | 06-mars-2026 | FCC Warning section added |
| 1.3 | 14-apr-2026 | FCC Waring section modification |
| 1.4 | 08-maj-2026 | Pinout description updated |
MERE INFO
- MIFARE, MIFARE Ultralight, MIFARE Plus, MIFARE Classic og MIFARE DESFire er varemærker tilhørende NXP BV
- No responsibility is taken for the method of integration or final use of the Pepper C2 readers.
- More information about the Pepper C2 reader and other products can be found on the webwebsted: http://www.eccel.co.uk or alternatively contact Eccel Technology via e-mail at: sales@eccel.co.uk
Dokumenter/ressourcer
![]() | C2R Pepper Module |
Referencer
- co.ukco.uk
- eccel.co.uk/custom-eccel.co.uk
- eccel.co.uk/custom-design/eccel.co.uk
- eccel.co.uk/support-free-libraries/eccel.co.uk
- eccel.co.uk/wp-content/downloads/Pepper_C2/C2-Module-eccel.co.uk
- eccel.co.ukwww.eccel.co.uk
- Brugermanualmanual.tools

