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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)
1 w! U8 d/ G* G' s- #include <ESP8266HTTPClient.h>$ K1 g E- Y$ v8 c: n" f: t
- #include <ESP8266WiFi.h>
# J' m5 p5 R9 w( A" H7 M# _# E- I - #include <ESP8266WiFiMulti.h>
+ S4 T# m2 p; \9 _# x4 O - #include <ESP8266WebServer.h>5 g7 X% X M9 L0 i( M7 ~
- #include <arduino.h>
# w4 Q7 W0 r7 i; u - ESP8266WiFiMulti WiFiMulti;
0 u& ~8 g0 J# i2 a$ e - ESP8266WebServer server(80);# ~/ B/ Q! `# [ G
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 d. e1 P+ {& H: l" x - ADC_MODE(ADC_VCC);
# M' \1 r! v5 K! i# S - void setup() {
/ e: j) j4 ~7 ^6 n - Serial.begin(115200);
5 ^$ H: Q1 {, ]) M4 T' v - Serial.print("\r\n\n");7 A: W" q9 T0 r8 ?" `' F: R
- pinMode(2,OUTPUT);
6 }( H1 \, u$ |* s. s# b - // WIFI4 ~/ A, b) O; i
- WiFi.mode(WIFI_STA);
( B1 ^2 o2 a* Y4 Z - WiFi.hostname("Sparkle");/ L4 s8 D5 ~8 C8 F8 J- u
- WiFiMulti.addAP("wifi ssid", "wifi password");
9 Q: U/ @; ]' ?% Q - int tryNum = 15;
b: M2 G _; M* { - Serial.print("Connect WiFi");
1 z! q0 s0 D+ S$ Y/ x( o. \ - while (WiFiMulti.run() != WL_CONNECTED) {0 o' {0 g+ ~( n& n0 X
- digitalWrite(2,0);* s; Q |9 C! @# S9 n% }
- delay(200);
' M+ s% V$ v% j) O, x - digitalWrite(2,1);
1 b0 d3 a, F4 y; }7 ?5 ` - delay(300);
3 O) x& U$ l+ D! W! y& M; k2 |! ~/ ^ - Serial.print(".");
) S7 H2 x0 ~2 q- O - tryNum--;& @( b8 _! w2 K6 v1 i
- if (tryNum == 0) {" U7 Z, @( z+ |. h1 w
- // 1min$ H/ Q& b( N/ m$ q
- // ESP.deepSleep(60e6);3 b& Z4 M" |" }: w# M% A3 {
- ESP.deepSleep(0);
; l+ |+ i0 R$ o% f - }
) G" L- E: N0 |8 B( d4 x - }7 p2 I" c! e) t; |. }5 _
- Serial.print("\r\n");
% N6 j2 r. w' J9 F! p0 W* G - digitalWrite(2,1);
' `5 }, y: r, P2 H! C7 K - Serial.print("IP address : ");
8 P" I- _- m. \ - Serial.println(WiFi.localIP());) M3 W# P$ o$ g4 O% p& n
- server.on("/", HTTP_GET, [](){
- R1 |% W/ G* ^ - server.sendHeader("Connection", "close");
5 Y) a+ o ^8 Y" V5 r! r2 s. D% q' g - server.send(200, "text/html", serverIndex);
) ], z# _5 f; k* C1 n! U - });7 y b6 E4 H2 v' W' _& n
- server.on("/update", HTTP_POST, [](){
7 d i- c) @# w/ t - server.sendHeader("Connection", "close");
: X6 m1 V" W& v$ P1 O6 \ Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 W( }; ~+ B8 V+ F - ESP.restart();
2 V0 q9 D' x9 e& k9 V7 A4 [ - },[](){: z+ e7 \4 l0 }' u
- HTTPUpload& upload = server.upload();
; {7 i% e3 R) W) b' S - if(upload.status == UPLOAD_FILE_START){
( Z/ a# N8 F& \3 _5 A- e* s - Serial.setDebugOutput(true);% D/ q; N1 F; M8 j- _5 H- p
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 ~1 d8 `: u5 Y/ F) Z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 ]- a9 e' S' {$ d% y) a- F
- if(!Update.begin(maxSketchSpace)){
1 `& Y7 O2 z3 H7 P1 U @. \6 o - Update.printError(Serial);
3 T* H/ F2 A3 r, D/ Y9 ^ - }
" \# n9 K3 f) a& ^6 P4 S - } else if(upload.status == UPLOAD_FILE_WRITE){
6 j* |8 W$ Z B7 g9 g; P' a - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, s& m6 o0 w" y/ m4 e: Y9 g: p' q - Update.printError(Serial);- S" }% q: b% |) i" I1 g8 l% }4 R
- }
: q" t. p U2 j8 P$ @ - } else if(upload.status == UPLOAD_FILE_END){- t8 \! ^3 J! r1 u- b8 }
- if(Update.end(true)){
# ], a3 u6 A9 f# V, Q+ p/ f' I0 g - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, D/ D! t0 Z- x4 @8 @; G, y/ I - } else {
4 A6 W5 k8 n/ U7 \8 D- c - Update.printError(Serial);& f3 J( T- q t
- }
* l0 q% N! v7 f - Serial.setDebugOutput(false);1 o* y8 _" L7 q9 |+ w- N
- }: n# [4 Q4 a: Z' o# r: h- I8 S
- yield();" ?$ a7 m g7 q6 }7 i7 R
- });
; }/ h2 L. L x' E; W -
4 ?/ q8 W* I% A( A" ?6 [. k - digitalWrite(2,0);/ N1 o6 w f# L6 p
- mainAction();- t3 o. n) G- v( m. \- a& t8 p: U
- if (digitalRead(0)){
1 v* }0 \& F/ N - ESP.deepSleep(0);
: n+ X) N! w3 d9 W$ X) C/ s S - } else {8 Z% ~ w7 f: b; n
- server.begin();
, L) g2 ]7 ?3 O4 M - }: q: I0 f H9 H* w! M& K \
- }; S- r, l1 Y! C
- void loop() {3 ]$ e& h J* O: |/ v) X
- server.handleClient();
: K6 C z$ M5 k- m) Y" } - delay(1);
& W& z6 a) R5 k: s& v - }
2 M- Z8 V- I" |$ y6 m) Y - String doGet(String url){2 E% ?7 R [- {% C
- if ((WiFiMulti.run() == WL_CONNECTED)) {! e8 ?5 u' w; P I$ M d. N
- HTTPClient http;
1 T" j, P* E7 I/ Q3 |( i, s - Serial.println("[HTTP] begin...");
, e$ ], P+ M8 X9 j6 v* N! e - if (url.startsWith("https")) {
, q+ N R' ]" @; |$ B" o s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! D, V& f/ M! z! t, F: {6 e - } else { C' r/ L; j4 r+ b
- http.begin(url);
# ^* k! ~. j( o/ S/ P0 g/ B% Y - }' Y. E/ @, w+ K0 J$ o) p" r
- Serial.println("[HTTP] GET...");
$ }" Z" i3 ]3 y0 I - int httpCode = http.GET();" F# k: }8 i( w$ ]" c# K8 m/ e1 q
- if (httpCode > 0) {& V* m, B0 K) i8 o5 l+ ]" |1 d/ i1 q u
- Serial.printf("[HTTP] code: %d\n", httpCode);
3 g6 T! [$ w" ]: d. N: v - if (httpCode == HTTP_CODE_OK) {9 d- u7 X/ q2 T/ P, n7 U
- String payload = http.getString();
0 C! k5 X& M: C3 R. Y9 O% k - Serial.println(payload);
2 [0 @* `" U/ P i# t - Serial.print("\r\n");
$ f0 r1 r- e3 o: l& n% A - return payload;. C, \& r' o9 W- Z8 V, @
- }
$ w2 w1 F3 \$ h: o, G) I - } else {, [# C0 q& D+ M8 J2 x# n
- Serial.printf("[HTTP] GET... failed, error: %s\n",
& Y; g5 |6 o+ @; g: r - http.errorToString(httpCode).c_str());3 |' t a1 i2 h1 K5 J
- }; H( o" }: o/ i7 h3 o. P* c; q9 U
- http.end();
# `( m' C; M/ H) G9 h2 r! O - return "";
! J* e1 D9 b8 i - }$ Y' c w; A* q, t4 V" V; U0 R
- }
5 l- _. h5 M4 S9 v+ R+ {3 A - void mainAction() {! w2 q S! @- V
- // 发送请求7 V& D( j" N. C) F2 o
- doGet("http://google.cn");( k9 M5 [" {" E: {8 a: V* u
- }
# D, V$ ]$ M2 v* s
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