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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 y7 l3 W g; J6 n- #include <ESP8266HTTPClient.h>( X2 {1 h- K8 S8 q
- #include <ESP8266WiFi.h>
' s2 v5 T( P5 X- J - #include <ESP8266WiFiMulti.h>
6 o4 ], W+ ~8 P. V5 R - #include <ESP8266WebServer.h>6 V; l2 e$ ]1 U
- #include <arduino.h>
- A2 X# o5 G! }0 x: U) B - ESP8266WiFiMulti WiFiMulti;
2 g& m" H) l1 \4 ~3 v( S+ o6 B4 d - ESP8266WebServer server(80);
4 e1 m6 \: I( S$ X5 {+ K - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; \0 ]2 m: H r0 D; P& J! b7 ]6 z
- ADC_MODE(ADC_VCC);
d1 ~' ^" s X" T1 k# O - void setup() {" \$ Q; e% J) |+ u
- Serial.begin(115200);* k# x, d- @" M( W6 a( N
- Serial.print("\r\n\n");
; F3 b+ L: t9 p8 C6 f - pinMode(2,OUTPUT);) g9 M/ ]5 d- ^" a
- // WIFI. y1 f1 o7 S1 q$ w/ n
- WiFi.mode(WIFI_STA);+ ^, X$ [9 ?- V/ A# O" b8 l
- WiFi.hostname("Sparkle");: k/ n! o, \3 U0 U* u; |
- WiFiMulti.addAP("wifi ssid", "wifi password");6 }" ^8 [. }( u; i
- int tryNum = 15;
' U+ a% y' D- [. |3 b$ a - Serial.print("Connect WiFi");
- [' c a9 W/ N6 |/ b - while (WiFiMulti.run() != WL_CONNECTED) {% N' l; q# d$ s4 M
- digitalWrite(2,0);
' H! q1 \/ y+ w8 r: y- ~ - delay(200);
, O: y' ^. f' N* z( } - digitalWrite(2,1);" U( `. V( ?* P* {1 x; _2 n
- delay(300);
. ], X: D* p7 h& L8 v5 W - Serial.print(".");: c4 B w' M% B: i v
- tryNum--;( L+ B- f7 T: f$ i* i
- if (tryNum == 0) {
- g7 K& k: i; b1 ~ - // 1min8 H# L# m' X- |& q5 W' i
- // ESP.deepSleep(60e6);
( I/ o* ], Y8 U) H; D& e; w/ i8 N* L$ X - ESP.deepSleep(0);4 i4 e+ O" {7 q! g2 b$ A
- }) O2 a( ] ]- N. L4 y! Y4 U
- }
. K8 _3 b$ r# }# U+ P( }7 j - Serial.print("\r\n");
" l4 |8 d. B. H" m6 Q, P - digitalWrite(2,1);8 }- q8 Q; u# ~% a* L1 V V, ~
- Serial.print("IP address : ");0 @- P4 ^! {; {1 {' \- }
- Serial.println(WiFi.localIP());0 q8 Y; j& d4 C% J$ W; ~
- server.on("/", HTTP_GET, [](){( k# s& [! {; u- r% v
- server.sendHeader("Connection", "close");
/ \6 j- C& h$ ^0 W p - server.send(200, "text/html", serverIndex);
! I' Y3 }+ C$ a2 o8 l8 l, t - });
. P3 r8 O- Z: V" b% y1 \/ x* j - server.on("/update", HTTP_POST, [](){
/ L4 F6 T7 K. \9 V& ]0 H1 i - server.sendHeader("Connection", "close");6 `8 g' n7 g O' j
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: J8 u& G* A; A* h - ESP.restart();1 D7 y; g8 _6 A' w
- },[](){ ]( j! N T4 _" k1 m
- HTTPUpload& upload = server.upload();5 _3 n* u/ t% b) {
- if(upload.status == UPLOAD_FILE_START){' |7 q* F' `: m3 \, R6 I+ r7 E
- Serial.setDebugOutput(true);( ^+ F) [- d* F, r0 l' _% a
- Serial.printf("Update: %s\n", upload.filename.c_str());9 N. d( X2 ~0 ?2 t2 c( X, t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( F( p; U1 A6 Q3 y$ x$ ^
- if(!Update.begin(maxSketchSpace)){, s: j( }) I' z. ?
- Update.printError(Serial);* ~$ T2 J4 E6 _9 e1 u
- }, I, q" t' z, W, e% f8 Q
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 p3 t2 x% l0 a0 F; t - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 K0 G+ r7 {1 t1 M- `
- Update.printError(Serial);
) q$ K1 K# k1 q( b# s4 Z - }/ T) }. q# |& p2 Y
- } else if(upload.status == UPLOAD_FILE_END){6 t& u8 m0 [+ \; ~) M4 u
- if(Update.end(true)){
' z1 a+ m6 q) ?' Z; w2 `. g - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: K0 P9 {& E+ G
- } else {
8 }" Z. ^* c' {8 c - Update.printError(Serial);
) {$ K: P: {, h3 ^ - }, P3 X; [2 w& L" r
- Serial.setDebugOutput(false);
& j M: w. X; w' { - }. h& {. r& b7 ]7 N
- yield();
: t( M2 l) a( g$ o$ t% u! ^ - });! U; c! A7 Q5 B! h; L8 y
-
0 o5 y' l/ b( k* p/ y; p$ _ - digitalWrite(2,0);, b) Z' ~9 @( J. S1 w: M
- mainAction();
: x0 p/ J {3 O1 I s3 i - if (digitalRead(0)){" ]5 I7 D3 V5 l P1 T
- ESP.deepSleep(0);9 W* N- @7 v' U3 Q
- } else {9 Z3 W' M! q7 M& e+ u6 o# B
- server.begin();
3 A, f2 S# {. z. a/ J- { - }. [( X0 C) T/ U, S
- }
; a1 ]1 v, _# H+ ?8 | n - void loop() {
1 k: ?5 q2 c/ t) s - server.handleClient();3 r5 O# M. Q% a1 z% L; P! m# D4 b
- delay(1);" K" e4 U# W6 m) p1 x
- }
" X0 u) z, h! L7 v& m5 X" ? - String doGet(String url){
( z6 e3 p% L% L% w: [; u1 x - if ((WiFiMulti.run() == WL_CONNECTED)) {4 }% [4 k; |% l W% D0 G
- HTTPClient http;
3 U1 m, E, I. i+ v4 e3 W( Y - Serial.println("[HTTP] begin...");
/ [+ x2 a: q! O% b - if (url.startsWith("https")) {4 e( _, g' ^" C# Q0 ]" {
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 q; u8 o( x4 y* c! c) m/ c; T& t
- } else {
' R2 c0 o. v% j1 R* R; f2 u l! s - http.begin(url);) a8 ]8 g9 T, m, U* J
- }
0 T; }/ U; _! c - Serial.println("[HTTP] GET...");+ V8 _* M* V* O* C6 a0 m0 A# [
- int httpCode = http.GET();$ T0 q5 `6 [+ A0 t! O# s) @6 ]
- if (httpCode > 0) {
! X) R& s5 N9 W L' @8 w$ A: x - Serial.printf("[HTTP] code: %d\n", httpCode);
- a* c0 W1 S6 F9 x; S - if (httpCode == HTTP_CODE_OK) {7 U8 _9 q$ Q9 u% r, C/ M
- String payload = http.getString();& i( [2 i; Z6 d; M
- Serial.println(payload);
# S! R0 x/ K* \8 ]- N% g+ a3 Z- t - Serial.print("\r\n");0 S. b! d4 V/ w; ]& s
- return payload;2 v9 c# O" T; G, v
- }+ M6 A x9 [3 ?/ h3 ]5 G2 A
- } else {/ Z% L) e5 |5 O7 b- B4 J n
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 ?+ E" d9 J2 W ^ - http.errorToString(httpCode).c_str());/ K0 v w/ d6 J3 |
- }
: M5 I' K" U6 L* H - http.end();
4 `% y, y' Z4 S( C! W7 M - return "";
8 h4 w0 o" E$ o4 @ - }5 Q) `! F6 K' q& d
- }
1 s# X4 i# T& U1 J2 D% | - void mainAction() {
$ I- Q& b3 a( A( D - // 发送请求
, ^5 j3 T# V( p" q3 _5 w/ z% g - doGet("http://google.cn");
7 U2 l1 y; H- r9 b. u - }
9 Y5 c& \# ]1 i0 u: _, I
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