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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). x' ~6 s* S7 w! T/ B8 F
- #include <ESP8266HTTPClient.h>
! [) G9 H8 B' a, |, a' s - #include <ESP8266WiFi.h>
! `+ \ j% P3 @( W; N2 V: h! a9 ` - #include <ESP8266WiFiMulti.h>4 @8 d, ~: o! P3 `
- #include <ESP8266WebServer.h>* W) y6 E# V9 c( @1 a) x) [0 e6 l
- #include <arduino.h>
0 n- o# l- j+ |" r' o9 h, q - ESP8266WiFiMulti WiFiMulti;
7 G8 n1 c. Q4 g" f - ESP8266WebServer server(80);
& N8 Y" Y% @+ e- {9 G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 Z, Z0 z! F, { L- N7 x' _
- ADC_MODE(ADC_VCC);' S" ~9 O8 o1 T, ?9 ^$ _$ d: {
- void setup() {
/ C; O7 U' M z - Serial.begin(115200);
/ E( e& G; n! E( s3 S - Serial.print("\r\n\n");) b! _6 z- t' ]2 F. q$ T
- pinMode(2,OUTPUT);, ]' c) X4 t8 M2 h, W% `/ U' }
- // WIFI$ J* ^- x+ ]8 B. i# w6 E7 _
- WiFi.mode(WIFI_STA);% }* Y3 Z2 U/ P& k k
- WiFi.hostname("Sparkle");
6 p- G( @# u7 O: E# f" \/ [ - WiFiMulti.addAP("wifi ssid", "wifi password");
" y/ R5 E& H! q) Y3 b( B, c" C - int tryNum = 15;
0 z& J+ n0 D# Y$ b4 E' s5 ^* J - Serial.print("Connect WiFi");
% w+ V# ^( r1 D. A% G9 o - while (WiFiMulti.run() != WL_CONNECTED) {
1 j" ~7 @0 c% Y9 D$ k6 `3 L - digitalWrite(2,0);
# M# w3 e* t8 o O - delay(200);
8 b/ P1 C5 G! A/ s& I D - digitalWrite(2,1);, f" a- D( q; f7 R
- delay(300);
. \. `% J9 _' Q( D4 a/ R W* O - Serial.print(".");/ K/ O0 W0 @: e! J8 N- M
- tryNum--;" n: I ~( ?; d1 p
- if (tryNum == 0) {9 z5 M P; ~' K7 G8 R
- // 1min: X5 ^1 e' A* @& O
- // ESP.deepSleep(60e6);' I. }" K# U) S& _; e) l2 V( x
- ESP.deepSleep(0);
( e: I9 @3 h" |: N X3 i" m6 ` - }" s; k/ y5 D# V
- }
# M: N/ d- |; M/ f2 g+ v - Serial.print("\r\n");% l! e8 D; L7 M% B
- digitalWrite(2,1);
6 Z6 x( t9 ^/ n3 O - Serial.print("IP address : ");+ t3 d* ^8 T1 u8 L+ J
- Serial.println(WiFi.localIP());9 T7 m% W& z. k
- server.on("/", HTTP_GET, [](){
& k( h: W k* L7 `$ V" F - server.sendHeader("Connection", "close");
2 u" f+ @: u0 d7 @- {2 D; f3 W - server.send(200, "text/html", serverIndex);
R, O0 X! r3 ]* \9 q9 C& d& x - });
# g, J% u6 Z, E+ P5 M( E) ^& e - server.on("/update", HTTP_POST, [](){+ K' ]' j$ i" h: y' Z
- server.sendHeader("Connection", "close");
, O3 \8 E4 {3 a1 [0 { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 h5 o5 w9 @/ k3 W" t. X0 r3 } - ESP.restart();& U) P6 [! h7 s7 J: \: {. r# P9 ?
- },[](){
1 Y5 p' `. H- K# Y1 v/ \. n" X - HTTPUpload& upload = server.upload();
) d6 Q/ w; Q- u: f r3 n+ \ - if(upload.status == UPLOAD_FILE_START){; }" H! k8 @9 D# e
- Serial.setDebugOutput(true);
. T/ [( s- S# ~. r! [ - Serial.printf("Update: %s\n", upload.filename.c_str());# E. i& P4 N9 M% e( F5 v! p2 r
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: E9 B. ]9 k* E" D! L - if(!Update.begin(maxSketchSpace)){& {; S1 F2 T$ c2 ]
- Update.printError(Serial);
+ c2 B( A& i4 h, {# K - }
. R7 I2 h" ^3 g, d0 G0 f" a% m: m - } else if(upload.status == UPLOAD_FILE_WRITE){+ ^- `8 C5 F8 C+ p6 H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, q/ r( G$ f c - Update.printError(Serial);; d& X5 U4 D" k3 N' d5 ]
- }
- m1 w% T$ j n0 u: \ - } else if(upload.status == UPLOAD_FILE_END){
; Z% K; U6 ?3 q: \% m/ T+ d9 { - if(Update.end(true)){
( C5 |4 K: S3 h1 i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ a5 Y+ u& g" G; m8 v, m' @ - } else {' K/ L& I& d; N4 q
- Update.printError(Serial);
, u8 ^+ V8 O( V- i+ F# `/ O - }/ {9 {; [! D/ u% f# ]2 h4 \
- Serial.setDebugOutput(false);
3 z% v, T; }; G' e" ^ - }( \2 H( l% b6 F( \) l# J) c* w1 ?3 @
- yield();& y. v! _ P" S$ A- E2 M( P
- });9 r- n6 X7 K% x% N1 h- b
-
* n7 t6 G, S/ P& Y4 \& } r - digitalWrite(2,0);; ? j- a6 C' y$ `. `6 \
- mainAction();$ i; v C# {: W( b# w7 q
- if (digitalRead(0)){$ \, H- Z: w6 ?, L: k: U8 }
- ESP.deepSleep(0);1 V1 e5 [. N& l1 V7 S" i
- } else {) _# V M# @4 r; k5 O* P
- server.begin();9 r- M4 k0 N& V/ D. Q
- }3 @+ B, [4 `# ^6 P) [$ g
- }
V6 c( N ]; C4 \. m+ z - void loop() {0 q) W5 W; d: P5 L; H# U
- server.handleClient();$ Z3 q/ i2 b# J' j! i; b$ R
- delay(1);$ M0 C' u8 K* N0 L5 @6 C& `
- }
) |. ~. Y1 S2 b3 T( u! w- ~! M - String doGet(String url){9 Y7 d" B7 ?! \: C6 D$ L
- if ((WiFiMulti.run() == WL_CONNECTED)) {- u7 j+ F( R/ G! a1 h7 C* c
- HTTPClient http;1 d5 \; f# q* y) C2 X. }3 s t
- Serial.println("[HTTP] begin...");
8 N: P: H5 A! z - if (url.startsWith("https")) {
/ L7 \) I j- o" M - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. K! n4 D( V" c% L6 f" U; J - } else {
; W" [ g7 D* h0 t - http.begin(url);: X5 _, v3 O R/ A
- }1 ]! \6 c2 z; _. F/ ?+ A* S
- Serial.println("[HTTP] GET...");' g& \, u' _- [2 u6 y& \
- int httpCode = http.GET();
% C( o& y5 q4 v' v7 s - if (httpCode > 0) {
5 D4 }: V4 w9 X* w: P! [ - Serial.printf("[HTTP] code: %d\n", httpCode);
# u3 E1 T$ s* V, _/ ^ - if (httpCode == HTTP_CODE_OK) {
) |3 Y! a) J$ L7 z3 D4 m - String payload = http.getString();! G( c- X P, \* F
- Serial.println(payload);7 b a4 H0 O3 ^* h8 [) O
- Serial.print("\r\n");
8 G% p. W- {% B- I9 b - return payload;
: K, g6 n2 `1 f" q8 {4 j - }( P8 h; V4 ], b3 p
- } else {/ w9 R& g3 U9 X$ @% S0 R+ P
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' @0 R d$ l p% w+ a% e - http.errorToString(httpCode).c_str());
8 ^% M4 [* l2 s0 B - }
# C/ d9 _9 A7 t6 K( F% H - http.end();
1 V$ Z+ h, g. S& b- G+ p l - return "";
* r: ? L0 ]: f Q z% U! a# r - }( d. a/ B" Q1 F/ O- `* E1 q6 v
- }
* }, H8 s& M) |0 \% N1 k7 X2 o - void mainAction() {
! [) j1 m& X o - // 发送请求( B5 |, Y) Z% Q% S, y
- doGet("http://google.cn");
1 p. [1 u2 _' n1 N - }7 a+ ?5 ~" \3 X/ h+ \/ Q
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