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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)
- o+ G6 Q/ @. e, M/ ]) w- #include <ESP8266HTTPClient.h>0 s0 Q N# _, I9 ]; S
- #include <ESP8266WiFi.h>; h6 A- }' O J# J3 z l6 D
- #include <ESP8266WiFiMulti.h>
$ O- d0 w3 Y- I! \+ r8 J* N, T1 n1 p, J - #include <ESP8266WebServer.h>
7 V% v% j) n6 l9 l" ] - #include <arduino.h>+ S% O% X! S3 S' H4 @( [
- ESP8266WiFiMulti WiFiMulti;+ a/ H5 g8 [ Q: u; H
- ESP8266WebServer server(80);
) e7 `+ e3 I0 O8 [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 C! C7 D) \8 W6 Y) k$ p
- ADC_MODE(ADC_VCC);: t# O5 H4 [4 E5 k
- void setup() {
v2 ^" v5 j& W* K' Q9 _' F9 c - Serial.begin(115200);
- l, |0 K, j" B' _. | - Serial.print("\r\n\n");- t! X: {- F8 A, \( V+ W8 J8 S
- pinMode(2,OUTPUT);
" y# M, W0 ?" ]/ ]- y( r3 j% i1 P - // WIFI/ c/ y- T* R. V9 S
- WiFi.mode(WIFI_STA);
/ q! C& H9 b# ~3 T5 T; M2 f - WiFi.hostname("Sparkle");* f m. |: e( v
- WiFiMulti.addAP("wifi ssid", "wifi password");6 g% N2 L5 _4 p( O6 ], C" [
- int tryNum = 15;
# F! x7 n1 P8 d' y - Serial.print("Connect WiFi");
1 z! L d* `1 E2 q+ f - while (WiFiMulti.run() != WL_CONNECTED) {4 L7 Z$ S# A( O% N2 p Z
- digitalWrite(2,0);
% `! i- d* ^+ Q2 Z, A - delay(200);
W8 C: L' @/ L* e& C# ~; t M - digitalWrite(2,1);7 n- q( t2 n7 p7 U% \
- delay(300);
6 b$ v% D6 b( L" F - Serial.print(".");
; r1 ^% T6 h0 x1 q# S - tryNum--;# D9 f: P5 ]8 y0 S) S5 P$ Q! L
- if (tryNum == 0) {
+ l9 d# T. I3 _ - // 1min
5 z! l1 V7 a4 u" O6 T, ~3 M - // ESP.deepSleep(60e6);
4 m! E1 o# C0 h; a+ Z - ESP.deepSleep(0);
8 [# `: h6 B+ M1 F - } B; y. c$ W- ~
- }
2 P- ^ Z% N0 H1 w5 k! x - Serial.print("\r\n"); z. ?# y: @& V5 p) w
- digitalWrite(2,1);
5 {# G6 \6 g) o, k* B0 d$ `* ]2 K - Serial.print("IP address : ");
7 A8 D& F3 w$ H1 V- S0 z! N% f+ { - Serial.println(WiFi.localIP());
2 A! X" _7 @+ ~" ]/ A9 m - server.on("/", HTTP_GET, [](){
% X M5 W: x, }0 T) N - server.sendHeader("Connection", "close"); Z! ~3 `/ H1 J' @+ Z$ o
- server.send(200, "text/html", serverIndex);
3 I6 j, h9 V* l/ v k - });4 I r# u9 x) n+ y
- server.on("/update", HTTP_POST, [](){8 ]4 n1 a6 [) T& Q
- server.sendHeader("Connection", "close");
1 T) F+ p: v3 O - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 L& j# L' q3 S1 {9 m
- ESP.restart();
) m; U- z9 W B( U$ P e - },[](){ U) K( e8 R# B( b# ^6 f2 M9 d
- HTTPUpload& upload = server.upload();. X4 P! o8 E% P
- if(upload.status == UPLOAD_FILE_START){/ h# v' G p+ x$ F+ ~7 k
- Serial.setDebugOutput(true);) G# U: F; i* u3 J- K1 B& N. h
- Serial.printf("Update: %s\n", upload.filename.c_str());
8 l5 L l# I) F9 N0 | m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 p0 B8 b# E8 o' F% J4 G& _# t - if(!Update.begin(maxSketchSpace)){
z7 o, O- h& v1 B5 i% g - Update.printError(Serial);
% y0 x K% j, H3 t, E1 j0 m1 G - }1 {$ ?0 n$ i/ `8 r. @1 n$ T
- } else if(upload.status == UPLOAD_FILE_WRITE){+ r1 e9 h' u6 S9 l/ X0 V0 u2 z0 d
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 W& N e. f, `
- Update.printError(Serial);3 I! `- T, V- u1 p
- }/ |* [* c1 r& v) W* V$ R; M
- } else if(upload.status == UPLOAD_FILE_END){4 P! U, u8 E8 U0 I
- if(Update.end(true)){* D* M9 P/ N$ U4 d- j0 U5 _( F
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; I( ?9 q, ~0 [, \! l, ]7 Z$ d' N - } else {/ [ D s. Q1 ~5 o+ C
- Update.printError(Serial);2 [- \4 Q8 E9 d4 P' H! U3 i
- }
% D! S6 v6 r# q' ?) h& d; S - Serial.setDebugOutput(false);
1 A$ V/ J) u" P% A/ h% P" V - }
* ?* B: d [; |/ f+ e* ` - yield();
/ \3 a6 `& s% x1 p+ U# z - });
9 B1 K+ V7 N' X+ k5 t+ G8 s - : e7 b5 W. J5 |' Y, P* q3 ` F- d, K
- digitalWrite(2,0);
& o! J+ d" G- h: ]* s+ e. \ - mainAction();
. Q& D2 S! q9 `3 W1 E Q - if (digitalRead(0)){. {9 j( }, h0 b
- ESP.deepSleep(0);
; B! H0 J% v _2 {# d - } else {" D: L( l, x+ |: B* m/ e+ B& |2 ~+ S
- server.begin();% x- z5 D6 \1 ?6 O" S: j( d
- }
% e" L+ r7 v6 x* @$ N9 F$ J6 Z - }
$ W% E0 ^( i7 X- v& l$ Z- O7 Q - void loop() {
& f* y. Y! P8 V' i5 u - server.handleClient();& F; e! f4 c" D' g! |) F5 s5 x
- delay(1);
8 _: F2 k9 m/ C% o9 s2 B - }2 e" t/ C" Z+ F7 j& F1 ~
- String doGet(String url){ R( W1 n# z& q
- if ((WiFiMulti.run() == WL_CONNECTED)) {" B+ [/ Q- ]% Z* J( ?+ G3 L- j, d
- HTTPClient http;3 Y* @1 Q! C( t7 y$ l# A
- Serial.println("[HTTP] begin...");: }, m# D( Y0 g$ k4 q: i8 k
- if (url.startsWith("https")) {5 C' [ S4 @1 i$ p% K
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, @. k4 b- z8 b: o0 m - } else {" H% I4 Q' A2 m, `/ f- i- V1 j" Z
- http.begin(url);
# G" H$ _) X/ V, ?# T - }
0 M% o3 |) c5 r6 U; ]% k - Serial.println("[HTTP] GET...");
7 q; `; A/ a1 B) d. y& @5 F& d - int httpCode = http.GET();
) j* V! r( q, f2 h2 E - if (httpCode > 0) {. w9 ^ ]+ H! h" y) c! O1 G' I
- Serial.printf("[HTTP] code: %d\n", httpCode);
! R# }" @1 {8 e# @ - if (httpCode == HTTP_CODE_OK) {
) |( x& l9 S9 B6 M, Q" g, @* n - String payload = http.getString();
& ]+ O5 j4 j" I3 P% m - Serial.println(payload);+ Y' {! H% Y1 l; f+ D; }% x
- Serial.print("\r\n");
/ _, |* \# v5 v+ t+ ~, Q - return payload;
' R1 r \+ ?. C$ @ - }3 p' N" g' h. B0 u$ B) L
- } else {
- F4 z' p. b4 V( {0 I3 v0 ` - Serial.printf("[HTTP] GET... failed, error: %s\n",
: Y3 B$ f& G# E, t) ^ - http.errorToString(httpCode).c_str());$ q- u- A8 h3 x/ K; u q$ E
- }
# o0 m' t5 q$ D* r1 M - http.end();
0 T. m$ q8 K5 ?! _ - return "";
) Q% }7 z* s f1 j - }
' I9 v [8 Z- a. L& U" C4 Q - }* S4 z/ z3 t& _2 T
- void mainAction() {- `) \ ?+ g) T" a3 z3 ~3 Y" I
- // 发送请求
2 L+ f& ~. n7 Z0 _6 [+ l. K - doGet("http://google.cn");# g. t: y8 Y2 {1 V1 p
- }
9 u% U( m; y# N# s5 N
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