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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)
F F% u4 B1 a; V3 r- #include <ESP8266HTTPClient.h>
" q6 ^2 p |8 p/ p; |5 j: _ - #include <ESP8266WiFi.h>
/ ~/ n% I" d6 q9 H4 R1 t - #include <ESP8266WiFiMulti.h>& K3 I3 \0 g+ O) L9 g& M0 g
- #include <ESP8266WebServer.h>) a) s* r. X! ?4 X
- #include <arduino.h>, L9 t5 `5 m0 X4 p
- ESP8266WiFiMulti WiFiMulti;" [ H' p) c6 @4 f1 s+ b! j! u
- ESP8266WebServer server(80);/ J3 u7 X+ D/ ]+ V" d* F( I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 |. c; m, B% B4 `; g - ADC_MODE(ADC_VCC);* l# s. l- ~; h `3 I/ }
- void setup() {- \! Q5 c+ A2 D
- Serial.begin(115200);
- ?( q' b9 L' I2 u8 _& Q6 K - Serial.print("\r\n\n");7 _+ T, _5 ?! }* `7 N! K
- pinMode(2,OUTPUT);
$ ^6 A8 l C5 i1 X - // WIFI% _: e2 q( H+ h5 T2 q
- WiFi.mode(WIFI_STA);, V' V3 ^! b( _9 @( K# ]8 B1 O
- WiFi.hostname("Sparkle");" V$ X3 y* |- Z" \1 i' Q
- WiFiMulti.addAP("wifi ssid", "wifi password");
9 L; D+ ]9 s4 t! B, j: I h/ r - int tryNum = 15;
) y( K, f' ?% I0 |$ ]6 H- g# h" @ - Serial.print("Connect WiFi");* A; J1 V1 b2 {& E; |! c* {3 |
- while (WiFiMulti.run() != WL_CONNECTED) {
! t" Q$ Z& c& N: N7 G - digitalWrite(2,0);
8 Q( h J5 {0 p9 |3 ~( U: x - delay(200);) i, j7 W/ r! A1 o
- digitalWrite(2,1);
. a8 o) T# s+ \3 i0 i% u, ]! f) Q - delay(300);; w8 ~. T, A7 B' J& o2 F R5 m
- Serial.print(".");+ N8 I" D) P/ d+ A% C7 H. K
- tryNum--;
) R7 w5 P1 a% u! v2 O3 c - if (tryNum == 0) {6 g, p* a, Q7 [' Q" s
- // 1min+ Z7 `0 R% C& F% j" D
- // ESP.deepSleep(60e6);$ c/ r& S O4 B6 y% O& U8 o7 S
- ESP.deepSleep(0);2 f2 z- } `# q- E
- }1 R' G1 u4 g6 C0 M& M3 A8 |1 c- H
- }
- {( s2 A2 w; ^: J: M h - Serial.print("\r\n");; M! t9 r) n) {- W4 G
- digitalWrite(2,1);
$ I% A2 C: _$ V: b, P - Serial.print("IP address : ");, w, @$ G( M ^, ^
- Serial.println(WiFi.localIP());
! @. B; i$ |5 z' N - server.on("/", HTTP_GET, [](){
9 n3 K, N' |1 F6 P - server.sendHeader("Connection", "close");" o: D/ c8 e8 S
- server.send(200, "text/html", serverIndex);% T+ A' g, e3 q ^! U1 L
- });4 ^5 a/ V# R7 F8 H
- server.on("/update", HTTP_POST, [](){
j2 z' R- l! n2 v, d, C U# ^ - server.sendHeader("Connection", "close");! E ` g1 D& A" G: t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) l) `# v b9 n+ f0 Z
- ESP.restart();
' }$ M0 u t' f @: h - },[](){
/ P% d" L/ V* h - HTTPUpload& upload = server.upload();
3 h- H: Y: O+ a. U: Q9 a( M - if(upload.status == UPLOAD_FILE_START){: H, ]& g1 V3 N( n8 A; M8 j0 H% @. H
- Serial.setDebugOutput(true);
* e$ L: r' V6 ` - Serial.printf("Update: %s\n", upload.filename.c_str());
" |% s4 j O8 A. |; N% C: G" o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ e0 b$ q- G4 |. y - if(!Update.begin(maxSketchSpace)){
, O8 q7 ]" F- D' a7 i0 X& U9 }6 \" T - Update.printError(Serial);! P- y1 P& J- ?) i
- }
2 \* u& V" m; q b, f' j - } else if(upload.status == UPLOAD_FILE_WRITE){
2 U) L6 Y* K1 z, h; ^2 ^/ Q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' {% j* y8 Y5 h$ _4 i$ ]
- Update.printError(Serial);
; w; D# S) h0 k, V( @, @; H - }
; e" r z4 w, l0 ]: T8 v! s - } else if(upload.status == UPLOAD_FILE_END){6 O r# H5 f; w7 V
- if(Update.end(true)){" y. G* |3 I+ g) z3 j$ B
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' a5 W4 [* b9 r4 N$ Y4 I( J4 V
- } else {
: ~2 W0 y+ i( u% G: f7 _ - Update.printError(Serial);
( C, X3 i" B: O2 f+ r0 q - }
0 E: g5 h3 C) u& _$ X - Serial.setDebugOutput(false);
! ~, H. V0 ?5 t4 n2 k' C% ~7 q - }" s* j2 G$ W j# V
- yield();- V+ M5 z1 {0 r3 i! U1 w% ?7 a* k
- });
6 @4 |6 F/ ^2 d6 B) Y; f/ | - 6 f; T+ V0 c6 w0 J, o0 g
- digitalWrite(2,0);
1 a5 w+ ~; U' k5 b% ?4 u - mainAction();
/ Z& U! j) \5 Y: F - if (digitalRead(0)){& T3 j& m. N$ k% G9 \4 E4 M2 V# l
- ESP.deepSleep(0);7 t8 e: T; R V. \8 q8 j
- } else {
, k# L$ e! s5 {/ i2 G" R - server.begin();" b& G7 @; @3 ~9 {- v& V6 E
- }2 {8 S5 Z, u" L
- }
: ^9 L/ R7 x) l) Q1 ^ H. n - void loop() {
, e0 t Q# s4 q& C3 R. V4 E" v - server.handleClient();$ X- M5 X: O7 w2 y `
- delay(1);
/ z" X0 f+ r. M( A4 f( h - }
1 @) b. H* w- W1 s - String doGet(String url){
K, u* K A3 {; U+ N% X - if ((WiFiMulti.run() == WL_CONNECTED)) {$ v5 {' _1 x' c7 e, o% x. f! R3 y- k
- HTTPClient http;# ?- g; D7 l3 b: B6 Z4 K" w
- Serial.println("[HTTP] begin...");+ Z# v3 c1 _7 Y# B" H9 { U$ |
- if (url.startsWith("https")) {9 f) N% }/ s1 ~- C: Y! ^, O
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 I- P- d* C' o
- } else {
$ z3 v- Q! h* P: M5 j8 I - http.begin(url);3 o( j9 X, p+ a% M" |
- }
5 j" E+ l$ ]( O | - Serial.println("[HTTP] GET...");, l! L) r+ P$ ^, Q9 |* ?
- int httpCode = http.GET();
4 i1 C/ T+ M) `7 Y8 H3 J/ L- v$ z - if (httpCode > 0) {
, L0 B8 E. b, R1 ?: @) e6 @. {6 A - Serial.printf("[HTTP] code: %d\n", httpCode);& ?; E( q) U1 b! F6 T" A
- if (httpCode == HTTP_CODE_OK) {
4 a$ s4 \$ F4 m4 v; I - String payload = http.getString();: n3 y. q7 w: U3 f9 K% p
- Serial.println(payload);8 |# q! r5 s% n- c$ q) g6 B
- Serial.print("\r\n");2 K5 o2 ^. f& A* b, K
- return payload;( g4 L0 W6 V0 O* j: ^
- }
% P; R5 e+ T9 g0 ~: m4 ^) Q8 u - } else {
! u" Z E& |8 h- s) i - Serial.printf("[HTTP] GET... failed, error: %s\n",
% w/ w0 S) M6 ]3 s5 q1 T% C - http.errorToString(httpCode).c_str());
[. L1 b' W2 V1 q- I9 A) N) q1 x - }* M3 M) U, f( q" X5 [- ~
- http.end();
6 a2 W" L5 p" `% B - return "";
( d* W1 V' z: I! v$ Z/ L - }1 A2 F# P5 q/ a7 f
- }
" y8 Q$ k: M/ B3 N- I - void mainAction() {$ d0 l7 R8 N! Z4 B( N, V6 Q
- // 发送请求 Y8 V9 `' F9 g: s
- doGet("http://google.cn");5 x4 Q" @8 l: c0 p
- }
/ q, D3 H/ U5 \( G; h- K" E! h
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