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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)9 S5 w% ]( p/ _$ Q
- #include <ESP8266HTTPClient.h>( q: u V; G8 P1 s) X
- #include <ESP8266WiFi.h>8 ]( u. D7 _3 a( U
- #include <ESP8266WiFiMulti.h>8 D% r4 ]) a9 J3 O" U8 a; m+ [1 O
- #include <ESP8266WebServer.h>) \' E# t# U) a2 ^$ ~9 J8 f
- #include <arduino.h>( e( T$ I+ i- N( ?6 }/ S
- ESP8266WiFiMulti WiFiMulti;+ C+ X& g# Z# q
- ESP8266WebServer server(80);
' O3 E5 @% L6 F) p4 `& ` - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; Z8 _" U5 j" l0 |
- ADC_MODE(ADC_VCC);- o3 y4 W M% x$ R" X* s
- void setup() {
, R' H' ^ D4 i; a - Serial.begin(115200);
4 D& K! C1 {0 i5 M8 z - Serial.print("\r\n\n");4 l6 B6 ?: }5 F' I
- pinMode(2,OUTPUT);: B6 i& J {( f# I) P1 R9 F
- // WIFI
5 a9 o5 F9 ~9 ~4 a+ U0 K3 y - WiFi.mode(WIFI_STA);
6 l J' k, w6 E - WiFi.hostname("Sparkle");
7 n9 q2 m$ b( Z) L* S8 C- L - WiFiMulti.addAP("wifi ssid", "wifi password");) k L/ p0 w h9 D- {
- int tryNum = 15;
( e% K8 P9 W0 z/ f& Q0 E - Serial.print("Connect WiFi");& q4 Q2 B" u. c( |
- while (WiFiMulti.run() != WL_CONNECTED) {7 c! w/ P$ V8 c
- digitalWrite(2,0);- O& T5 r4 @3 v$ r( C) v& F* o. q
- delay(200);
) Z) }5 K' s! m/ I7 ? r- U/ r( e# B - digitalWrite(2,1);! H" ]3 H4 x8 G! u
- delay(300);
- p0 i* V! w& n; j9 |/ a/ H: M - Serial.print(".");2 b4 F/ `9 O6 T0 h: v
- tryNum--;, l! n/ e* ]2 h+ D3 |9 X
- if (tryNum == 0) {
- ` g Z# }% u6 U" p/ V, k, L# `' w - // 1min( J( c/ T: v# ?8 E( e! Y
- // ESP.deepSleep(60e6);
% S! [& _$ ?9 \& G) C& |) O# L - ESP.deepSleep(0);% I9 v1 d/ ^* J. O6 a
- }4 f7 ?& V0 D; S6 o+ e7 D
- }
. j& x; O. f: G) C# h - Serial.print("\r\n");& ^: R8 a& V, T: h- I1 M1 a. Q/ [
- digitalWrite(2,1);
2 U0 c; y) J( t, s& J/ Y6 k" l% J& h) v6 ~ - Serial.print("IP address : ");* A3 A) s ~' Z7 \
- Serial.println(WiFi.localIP());
" B: M% \2 P6 L5 ^8 r1 p - server.on("/", HTTP_GET, [](){4 y* n: C, j! t7 M" |5 S
- server.sendHeader("Connection", "close");( E& B' e% |2 Q: w: @# {0 t
- server.send(200, "text/html", serverIndex);
& u) z( K6 F& m+ ?# Z* E - });
& y4 [2 j* l* \+ t - server.on("/update", HTTP_POST, [](){9 e8 j2 y. w- Q' j8 N1 d
- server.sendHeader("Connection", "close");
; A* }& J4 e! D! e( e; @* o( L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* Z- X0 H6 t( n0 Y" _% n5 N - ESP.restart();6 ~! j, M. u8 |
- },[](){
* O# Q8 b5 w6 V. r/ Z9 X: G+ W. H - HTTPUpload& upload = server.upload();& N0 Y2 s {4 I0 B R
- if(upload.status == UPLOAD_FILE_START){: M7 d" S0 l! X& o6 L) @# v
- Serial.setDebugOutput(true);2 {: O$ L& h1 m0 [: k" t
- Serial.printf("Update: %s\n", upload.filename.c_str());. q3 ?7 u1 j; s) F& r. w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: T, B2 B: P& r8 |2 k- q - if(!Update.begin(maxSketchSpace)){
O: q9 @2 D6 a B0 a - Update.printError(Serial);
; P+ v/ i/ c5 I$ { - }1 k* ~1 s- ], G: L4 h, Y" o$ n
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ Y9 j3 p) }: M$ v - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" [' B/ D' S4 l4 R% O
- Update.printError(Serial);* X7 D& C# V! n5 X3 C$ L3 i0 d
- }
# `) q% \7 S' h. F) z - } else if(upload.status == UPLOAD_FILE_END){. b* p# H1 ^4 s' }7 k
- if(Update.end(true)){ O2 K: N' w ~6 K- ^4 S& h8 [
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ J4 P! D% g- z. D - } else {
" A1 y" D: p! L+ U - Update.printError(Serial);
( ?# J+ p& \4 w3 d% H - }, f5 G4 B! n8 L, I
- Serial.setDebugOutput(false);+ [. W: ]* X) @$ n8 h: z
- }8 L/ Z# F- V5 s
- yield();7 t9 x$ O* H8 ]
- });4 d7 X- }- Z3 g/ o. s" G7 o
- # E! n2 R6 Y, J6 b+ ]' ~( k
- digitalWrite(2,0);
( I) M6 \$ I3 T0 w - mainAction();% S1 ^# y" Z9 o9 i% ^& \1 q9 ]
- if (digitalRead(0)){
) p) u. U! E* |; T5 _ - ESP.deepSleep(0);4 t0 E6 y/ b4 M% A/ ^# n
- } else {; p6 F4 Q' G5 t" O' Q* a ~6 E
- server.begin();
0 v* i4 \" {/ H+ A5 e: T6 z4 z - }) ?- t6 T5 j6 w2 \4 u
- }$ }* @* U9 I7 S
- void loop() {( E3 q9 h+ J1 E3 f3 `( m) v
- server.handleClient();5 x( T) t1 H3 Y9 G% W5 V3 S: c1 H$ P
- delay(1);
% S5 C" `% S, P - }6 d1 c& a6 L* {; R5 D! \8 Z6 O# c
- String doGet(String url){
9 u) d5 E0 O% }, m0 k - if ((WiFiMulti.run() == WL_CONNECTED)) {3 v4 y7 N7 D+ j/ H
- HTTPClient http;" u6 p" s4 x9 M9 R0 i8 h
- Serial.println("[HTTP] begin...");( O: j# @. E* a5 T
- if (url.startsWith("https")) {
: z$ [# e% f5 o9 o5 E - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; d2 B. R- L. g% B - } else {
; H) N) r7 \+ [- b - http.begin(url);
% K" N' { p- ] c# a6 ? - }
" B- L. m* `$ M1 E - Serial.println("[HTTP] GET...");* b. z, w" b$ \6 T( f$ c# t' N' x
- int httpCode = http.GET();
* L- I7 W# W" J9 ^3 E9 z3 @( v$ Y - if (httpCode > 0) {! b: F! K7 c4 A4 W6 X
- Serial.printf("[HTTP] code: %d\n", httpCode);# c. a3 m* n- K
- if (httpCode == HTTP_CODE_OK) {
6 w/ ^4 y: ?7 U4 X% `' A - String payload = http.getString();
M6 q0 \3 J$ J, j3 I. r3 @ - Serial.println(payload);
1 T' f0 B* Z x$ o - Serial.print("\r\n");
) I' w0 q! y. V a! j4 A5 l - return payload;- r8 m4 g4 A( C9 T" R) v
- }* q) s$ @' W% o' m
- } else {$ J2 E6 x2 I* U! b' b
- Serial.printf("[HTTP] GET... failed, error: %s\n",. I, P& U" {9 Q& G# ]9 i3 x5 ~: V' n% h
- http.errorToString(httpCode).c_str());8 J! k! `0 M: F+ R* ^5 [
- }9 ^$ J8 i$ X$ N2 `
- http.end();/ M& F: z1 z0 P6 m( A9 D
- return "";
' `2 w/ I; l1 c$ v# Q - }
3 y- @. f: b2 n" C: l. M& [% C6 ] - }
, l8 p& W3 t; _6 |8 l( [' [ - void mainAction() {6 q' d6 O. G: I V4 h) x
- // 发送请求3 W- _& e8 e0 I& N" J$ T/ g
- doGet("http://google.cn");4 U" ?6 ` B* o' x/ W& }
- }
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