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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)7 c* |$ |: {+ c; ^2 M
- #include <ESP8266HTTPClient.h>
( w; s! M0 j) Z9 S( a - #include <ESP8266WiFi.h>/ N4 ~9 ^! E$ w" ~8 Y' `+ T
- #include <ESP8266WiFiMulti.h>
' r: _* }/ y+ J$ v - #include <ESP8266WebServer.h>
5 G$ L, `8 P! J1 s - #include <arduino.h>
1 Q, K. f3 f& D1 V4 H* f5 ` - ESP8266WiFiMulti WiFiMulti;+ \, j8 ?, R. k+ ?
- ESP8266WebServer server(80);
# d$ ]0 Q2 F4 i4 j - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: E0 m& K( y( x, a
- ADC_MODE(ADC_VCC);2 a! o1 I8 M) X; p
- void setup() {8 R4 |0 ~0 ^# X6 U( N
- Serial.begin(115200);1 h6 O# ~$ H8 L1 S# `" E$ F
- Serial.print("\r\n\n");
* O1 I( ^0 ?$ C9 k- ?; T - pinMode(2,OUTPUT);
$ s4 M7 ]8 ]" K3 X: I/ m2 n2 h - // WIFI0 ^( T4 T1 d9 L* k; O% v _6 R7 M1 o
- WiFi.mode(WIFI_STA);
. q* Z$ }, k$ |- S - WiFi.hostname("Sparkle");' y' {+ O6 A9 a, F6 G* }
- WiFiMulti.addAP("wifi ssid", "wifi password");
: c" c2 E" w( n$ n6 ~$ u! d - int tryNum = 15;9 g8 \5 _" ?, d8 C$ P
- Serial.print("Connect WiFi");- Z, }* | K# {8 _8 ^8 g
- while (WiFiMulti.run() != WL_CONNECTED) {% I/ ]* V0 @2 Q$ l ^- |: _
- digitalWrite(2,0);
' d/ m/ I) E! o6 ?& x - delay(200);
6 a6 W& _( M; w8 \! i+ m, G% B - digitalWrite(2,1);) {+ w4 t7 O7 l; _
- delay(300);
- w2 T* ?3 ~" O1 Q/ _* ?" K/ A - Serial.print(".");
$ G7 w: k7 ~% I5 C x) T - tryNum--;2 `5 k0 P# d$ n7 B" s$ x' U' ]
- if (tryNum == 0) {
& G$ q l5 g6 j7 r1 s+ K - // 1min( @2 a. ]) v% a Y, B, N
- // ESP.deepSleep(60e6);$ \8 [; W* J- L( a9 L* ^; \6 N
- ESP.deepSleep(0);# o* Q+ f3 [, m/ F+ j/ W
- } j2 e& n2 P$ A G6 x% n: q, L3 A
- }
/ R9 D5 F+ Q3 {5 ~2 g - Serial.print("\r\n");1 e4 V( v0 B" m B* c8 U+ z5 a
- digitalWrite(2,1);
8 A* z) w. |% Y( U - Serial.print("IP address : ");& o3 F4 a$ ?; {, j$ e
- Serial.println(WiFi.localIP());' u4 y5 G, f' N9 d) `% [) o7 m
- server.on("/", HTTP_GET, [](){5 W( b8 e- W( x8 a! ~; K2 I' U
- server.sendHeader("Connection", "close"); B& @# r2 A& U0 O
- server.send(200, "text/html", serverIndex);* l) f1 J" z* Y8 @
- }); j. W0 T# b; m" Q* b; p8 K
- server.on("/update", HTTP_POST, [](){0 a( ~. ^0 C% J; k! `- ?; E
- server.sendHeader("Connection", "close");" n. k7 J4 j6 t3 q: E, |: x
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: R: u9 P/ F6 a7 C/ i+ [ - ESP.restart();
8 _) i& s* L2 g) i - },[](){) H2 L$ \. b( `! v1 u
- HTTPUpload& upload = server.upload();
# I9 {5 K# }0 \3 a, E$ |' r - if(upload.status == UPLOAD_FILE_START){
: z4 i3 ~) f" {: b - Serial.setDebugOutput(true);3 m( D- U2 O2 q) \
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 B( H; L, @" Z9 v- X/ ^* l - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ Q# Y8 y4 M$ Y% E% X9 Q! v
- if(!Update.begin(maxSketchSpace)){
* y4 ?6 R8 L, n3 g: U - Update.printError(Serial);: l( P1 ?- j: [' `- i
- }
2 I' |! {& C: d' R# F! ?; W( k& h) O - } else if(upload.status == UPLOAD_FILE_WRITE){( _" N( M, I1 ?7 N6 U0 H0 q, k& m
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: m2 X# ?; g+ R0 x - Update.printError(Serial);
* v+ ~7 T3 h6 J0 i* ]: H - }
; O+ O, Z( k. @6 s: _/ k, ^ - } else if(upload.status == UPLOAD_FILE_END){! f% n0 p. X* d
- if(Update.end(true)){
9 G/ X& x! C8 L1 o. A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% T; g( S' q7 l" t! B1 d - } else {- {, \$ ?; K* }# S4 P6 t# W; A
- Update.printError(Serial);4 x& Y; Q; c# E2 O$ {; ?. @ i+ p
- }, {" S, \# B( y1 _
- Serial.setDebugOutput(false);2 Y( X6 J8 e. \ b# x8 j
- }
5 L$ U, [" ] K. H) U" X - yield();
, n- ~8 u1 a( G' w* a - });: e; p7 w3 X- o1 P9 z
-
6 n5 D$ L4 N6 @ - digitalWrite(2,0);
% b4 i; o- E! h# Z: { - mainAction();! Y7 E7 i/ p; l1 H$ c) R
- if (digitalRead(0)){
$ `: J2 p" S; Z, i! y+ X - ESP.deepSleep(0);9 O9 N6 s9 s: V
- } else {6 H9 c6 u1 \/ a' y1 |
- server.begin();
! ^9 t0 M6 Q' ^$ j( t( Y - }$ K+ z0 p) q% b3 W, ~, H- ]/ @
- }
' V3 r% R2 X" Q h6 i% J7 { - void loop() {
; ~+ x5 b7 Y8 ^6 w2 k8 ?5 C% H - server.handleClient();
& M; x! ]4 H* S, w% c& a - delay(1);
4 V1 o( H5 C2 F# [8 W - }
! e8 f6 i8 v/ m - String doGet(String url){
2 h; J$ [% G y - if ((WiFiMulti.run() == WL_CONNECTED)) {5 I& \) q6 Y/ S8 i; n" g0 _6 S
- HTTPClient http;
) v* n, I, \3 L) u, V1 R# V - Serial.println("[HTTP] begin...");. k y( ]0 ~3 ~
- if (url.startsWith("https")) {
1 k" q. _! s' G: K - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) t$ ~' ?( L: H A - } else {2 M" b, Q+ r8 A9 p9 s
- http.begin(url);
! e7 n& c) [2 E1 E1 m - }& t/ g) S+ K* @" Z% A+ U+ S( O6 h
- Serial.println("[HTTP] GET...");
6 [: k& h5 m) `# F6 t - int httpCode = http.GET();7 ^! p: X: i" b5 s; L
- if (httpCode > 0) {
9 i1 e' W& _ [; u1 l. [- c0 S4 L - Serial.printf("[HTTP] code: %d\n", httpCode);
9 P1 {) P7 M+ ` ]4 p - if (httpCode == HTTP_CODE_OK) {% O) u6 ~( H& ^# w& u! f
- String payload = http.getString();8 H. K. C% i c6 K0 b3 [+ g
- Serial.println(payload);
9 V' k+ d* D: ]/ y( U - Serial.print("\r\n");
5 b( [ T. w" N" P+ x$ n# u - return payload;
! V) R" _4 z. S, m' d! D - }9 z$ G! H& C% I W2 B3 e" l) k1 n
- } else {4 a# K* k% s1 A! y
- Serial.printf("[HTTP] GET... failed, error: %s\n",, g1 h6 m* X2 ^# z
- http.errorToString(httpCode).c_str());& {" W: e+ {% F$ D7 D7 [3 `% ]
- }9 Z: M7 P1 u2 [# C2 u. t! Q
- http.end();
! p# q7 A- v) Q; W# n - return "";2 P b7 I- }. h1 l% a/ [1 g* P2 q
- }$ [- @; W# Y4 c% x/ {) T% m
- }- V0 E. T' l% h+ E
- void mainAction() {
# {- L5 E, [3 P; y+ P3 R( n$ ? - // 发送请求
! o D5 x8 o. a Q - doGet("http://google.cn");! u6 d: z, I S& j: s6 ~
- }: j, J7 g# j9 a0 U' C2 T N
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