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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)
% n3 p7 P7 e$ V3 t1 F. n% \- #include <ESP8266HTTPClient.h>( R3 O6 g( w8 ^2 S
- #include <ESP8266WiFi.h>3 ? U6 u" d! ~& K6 Z
- #include <ESP8266WiFiMulti.h>" } z5 X( A" I" a1 W
- #include <ESP8266WebServer.h>4 t# n C' `& g) N5 `$ W8 K
- #include <arduino.h>
. k2 {& Y8 K5 I" x1 ]5 ~ - ESP8266WiFiMulti WiFiMulti;* L2 N& s, z/ `% W
- ESP8266WebServer server(80);; t9 F; c9 Z2 g* O
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
b/ u' x4 r" L' P& Y" t$ j7 i - ADC_MODE(ADC_VCC);" ?% I- Q8 p p, u' _ E
- void setup() {
+ I& @. W$ N% R - Serial.begin(115200);
# b2 B: f" C; o' k - Serial.print("\r\n\n");
' C8 E7 u! q) Q* d) W: { - pinMode(2,OUTPUT);
6 E; F& W! k6 w$ V( m# T/ T8 a - // WIFI8 l. d# Z% N. q% i3 {
- WiFi.mode(WIFI_STA);
; A( L, f8 `/ l1 P - WiFi.hostname("Sparkle");
' I( N+ l ?' w+ j+ @ - WiFiMulti.addAP("wifi ssid", "wifi password");
; n, \0 w0 \4 S - int tryNum = 15;
. B& I" S" i, ? s0 s0 B% E O. ]6 F - Serial.print("Connect WiFi");" d2 l# i- l+ W' C8 Q
- while (WiFiMulti.run() != WL_CONNECTED) {) }( Q- K5 U: z3 J& C2 k$ e
- digitalWrite(2,0);
- O, p# V/ l% d+ Z& d - delay(200);1 R/ L. G% c6 h& g
- digitalWrite(2,1);
; h2 v* `% [2 G' m- `. P5 \! B - delay(300);
! G! A- V7 u- a! }0 m - Serial.print(".");& Q8 p5 Z; ~1 X; \& L( @4 J
- tryNum--;/ E+ {+ z9 R7 E
- if (tryNum == 0) {2 @# z! v( q* n7 W2 S+ C
- // 1min
$ R( C5 E3 A, M* F" S# z' e& ? - // ESP.deepSleep(60e6);5 {. M5 Q0 _6 v4 f) G
- ESP.deepSleep(0);: c' e* s2 H6 z! n& n& s0 h3 h! ]
- }! c' W) _, z8 @; @4 b; r
- }' p4 u$ X0 n+ _ T, J
- Serial.print("\r\n");
! P! ~) M2 S1 t3 d' B* y - digitalWrite(2,1);, k( m& t+ H6 m' T1 J
- Serial.print("IP address : ");+ Q f. I; a: \" P. D
- Serial.println(WiFi.localIP());
3 P' {; j' ^% D. A% A, W/ o7 K% A - server.on("/", HTTP_GET, [](){
5 O% \' E3 S9 e- n - server.sendHeader("Connection", "close");7 j0 M a! n& R% V$ m
- server.send(200, "text/html", serverIndex);
- h+ b; w( S8 j I# l' a/ J - });. X5 w# a* {4 Z" V- S
- server.on("/update", HTTP_POST, [](){
8 Y# w( n" }' |. S - server.sendHeader("Connection", "close");
: `+ h1 q7 `; A5 e' C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, d/ l2 }7 J( B; Y - ESP.restart();
* q2 _, d3 F2 i) u, r: M; |: b - },[](){" Y8 x* G) h2 D
- HTTPUpload& upload = server.upload();7 T( B, C3 L) t$ a( D
- if(upload.status == UPLOAD_FILE_START){- M) n. b& t4 k' E5 k: I4 w
- Serial.setDebugOutput(true);
, Z$ s; G9 @( k$ c: d/ o - Serial.printf("Update: %s\n", upload.filename.c_str());% y2 x0 z* z3 F% a) d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: Z5 `4 Y. f' M8 H& t - if(!Update.begin(maxSketchSpace)){3 _) I4 Q9 \; U) V6 V0 L
- Update.printError(Serial);) p" E! q! [+ f1 _ {$ }& ?$ V0 P0 V
- }
6 M8 r0 ~4 D* T( |8 t: V - } else if(upload.status == UPLOAD_FILE_WRITE){3 o' u. L" {. m7 ~: h) v
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% \! p, H% w# w5 U! L4 P! n - Update.printError(Serial);
8 z! M# l* L' t* E) |& W" G - }
7 y3 {: D7 m3 N8 b - } else if(upload.status == UPLOAD_FILE_END){* k2 m/ c7 S; O( c' C
- if(Update.end(true)){
1 _/ C. j" k P( M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( Y4 r7 j1 l$ n& q3 b: K7 L
- } else {
3 A- V( w3 _9 f3 E# ~8 F; _# z& x - Update.printError(Serial);2 V* W/ [+ X, o$ `
- }9 s- B3 m. ]4 m* c1 h' q5 ?
- Serial.setDebugOutput(false);: w( P: W Z/ N) G/ @9 ~0 k9 o
- }4 y8 `% h( U% |* q% f
- yield();3 S+ m- i( X0 B5 }. J
- });: L" @- _# ~. v: Q4 D
-
1 h: k+ U+ I& c& r - digitalWrite(2,0);6 { m0 d5 Q; k$ Q7 Z: E' w
- mainAction();/ W: [0 a- y. L5 h- j$ A/ U/ H
- if (digitalRead(0)){
5 v# q4 }+ i0 d# p - ESP.deepSleep(0);
) M) G" v9 X6 K& ~4 M - } else {
7 w& t" E4 c& }0 t) C" O/ ` d( c - server.begin();
% P$ t3 q' z6 _- E, `2 I - }
6 N# H) f2 P p2 B1 _ - }
9 y m6 H7 O# Q7 M' k0 [ - void loop() {4 V. ?; a, k* D
- server.handleClient();2 L; j8 U# J' V* }! q8 v# k3 a, }3 i* X
- delay(1);. E& Q- K* k3 _9 A& \% v
- }8 f9 O" b$ x4 B d' g: ~) Q
- String doGet(String url){& {2 x- S) G+ T1 Y' N
- if ((WiFiMulti.run() == WL_CONNECTED)) {6 G5 V6 @2 @% p5 g
- HTTPClient http;
) L$ N) [; @ \# o& _! z - Serial.println("[HTTP] begin...");$ u( O! V3 K3 `- `) J8 Z9 a
- if (url.startsWith("https")) {
& t. f# N0 e1 V! P R7 s6 J; y. O5 ^ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 z1 W( G# {' z9 N
- } else {" U- j! _4 S, W
- http.begin(url);2 Q% w5 F4 G0 h1 q2 ^
- }- |$ F8 C2 b; `2 L) D
- Serial.println("[HTTP] GET...");5 _2 R" ~$ w! n0 @/ q/ o$ X
- int httpCode = http.GET();# [% ^8 R' s! ^! J1 R
- if (httpCode > 0) {- Z* k9 \: V% N5 J0 l% x( B a2 [7 L
- Serial.printf("[HTTP] code: %d\n", httpCode);
# R. W7 L1 I5 Z+ H3 E) t - if (httpCode == HTTP_CODE_OK) {
& H& C. h$ B4 r: n3 Z, Q+ B% a9 } - String payload = http.getString();. u3 p+ H f0 m! S& }5 K
- Serial.println(payload);
P# W {- _6 G, [/ @6 k8 V - Serial.print("\r\n");7 i" s; }+ [3 J* z
- return payload;
8 i# z- S( f$ y2 ?/ O$ W - }' I* [, j; }/ @) R3 a4 _
- } else {/ Y5 i1 N: d2 H- e5 l: D' Q* O
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' s/ v2 P: _/ n9 J4 C2 w - http.errorToString(httpCode).c_str());
9 [4 _! e& d. W) S - }! F; X8 a$ Z8 a$ z) m, o8 k' f* A
- http.end();: N v( d: g# ?
- return "";
3 O1 `& x2 `! w7 t - }1 t [/ D0 o6 z2 Z; m9 }
- }
$ u" i5 r+ i# T+ I& ~5 D) E - void mainAction() {
; u: k8 U3 d6 r6 Z - // 发送请求3 V) L; [7 D* {4 t
- doGet("http://google.cn");/ o+ K8 J/ y* N7 r6 y; F4 W1 F) j
- }
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