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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)2 r- [: o l6 u8 l0 F% s
- #include <ESP8266HTTPClient.h>
/ [) p2 N2 g) H8 C5 j6 b/ H/ I8 O - #include <ESP8266WiFi.h>8 A5 p' R2 j- v- w& C# U
- #include <ESP8266WiFiMulti.h>& r, B0 t! v! D; F- t& F4 v
- #include <ESP8266WebServer.h>
/ b5 S- _9 `) C - #include <arduino.h>% s+ }/ K/ A* B
- ESP8266WiFiMulti WiFiMulti;
9 I P4 L. r, I- e' {; A2 B - ESP8266WebServer server(80);2 D$ W; j9 X5 |; K
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 `) E4 n/ |7 r& O, T n - ADC_MODE(ADC_VCC);; u, |8 t: ]/ _$ o
- void setup() {1 W# Z: X, j* q
- Serial.begin(115200);$ F0 I# J& h) Z3 E, l6 _4 z
- Serial.print("\r\n\n");
% ~1 _; W; D9 o1 F/ t - pinMode(2,OUTPUT);0 S& y/ n* [6 d9 }4 C
- // WIFI* n0 W) D" C0 t: |: N+ e; c
- WiFi.mode(WIFI_STA);0 L) }1 s& E' U
- WiFi.hostname("Sparkle");
; P$ N- a$ B) v; l - WiFiMulti.addAP("wifi ssid", "wifi password");; f1 s: _( A$ {# {
- int tryNum = 15;) l$ A5 F; W2 p# j" ~& z( ^
- Serial.print("Connect WiFi");
E+ o# y4 B/ @5 r: N- f - while (WiFiMulti.run() != WL_CONNECTED) {$ U0 m# T- Q% u* a/ h. _0 c# I" P- F" L
- digitalWrite(2,0);
# B6 @3 T% Q, W7 I - delay(200);2 R+ |$ r6 [* W! B+ g9 i
- digitalWrite(2,1);3 J" ]8 z& a4 L# R; V4 o+ \
- delay(300);0 N# h* Y0 \0 h3 o, P
- Serial.print(".");& _; }3 ~" q( q# P- S# y3 |8 W2 h
- tryNum--;( H0 f- T" \5 Q
- if (tryNum == 0) {7 e8 B) y3 c5 W
- // 1min
7 L, N$ A. \# {1 c. C0 h( G - // ESP.deepSleep(60e6);! N# `' u) \ i/ T: G+ T$ h/ }
- ESP.deepSleep(0);9 M$ C, l0 W2 S! |7 l0 Y3 V
- }
& w0 g% K N, N, I0 G% s4 x* Z - }1 q$ E/ X+ A2 n
- Serial.print("\r\n");
- A c/ ]$ E( V1 J( X; d u0 I - digitalWrite(2,1);# b4 h6 |6 O) J
- Serial.print("IP address : ");
2 S3 m! h- Z4 c* P! n4 D6 r' k* l - Serial.println(WiFi.localIP());
4 c% p6 R. W# N& Q0 p U1 { - server.on("/", HTTP_GET, [](){2 I9 [6 ^- n Q" k
- server.sendHeader("Connection", "close");
6 B f: A- [3 B1 B9 C, w - server.send(200, "text/html", serverIndex);
3 ?5 Z! @% F" F! u5 s+ ] - });$ N9 W0 _* K$ l. V$ V) U
- server.on("/update", HTTP_POST, [](){
3 o- z- i: r% `( ^7 a - server.sendHeader("Connection", "close");
5 c0 J9 O( O- k6 O1 n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 }) J, o2 H! o: n L
- ESP.restart();
9 p; z5 n# H. }: F- i. z - },[](){* H5 ~3 l, E8 _' L, w) k' ]
- HTTPUpload& upload = server.upload();( v$ @ {2 S( N( S$ G
- if(upload.status == UPLOAD_FILE_START){
4 d7 r9 S" H( V - Serial.setDebugOutput(true);
$ R% I! @, o1 C4 ?4 e4 F) ~( S - Serial.printf("Update: %s\n", upload.filename.c_str());, \9 y0 |# r s/ H9 M
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, D( P/ a: T2 @
- if(!Update.begin(maxSketchSpace)){
! r. |( z. ~, R) Q1 V) K9 l - Update.printError(Serial);
9 ?& e% x& ?: s `4 l: H3 v - }
( R$ J$ c1 I8 L* c+ f0 D' R - } else if(upload.status == UPLOAD_FILE_WRITE){- v) n F7 x3 K8 H6 s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" b& O) H" I+ _ - Update.printError(Serial);
4 | c1 i4 F- M! `9 m - }
0 [0 k0 u/ \5 e6 B - } else if(upload.status == UPLOAD_FILE_END){7 H+ W7 u3 L- f: @* A d
- if(Update.end(true)){
- Y" H: m5 j6 E) _ o4 s' [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) V$ D6 L2 C5 r
- } else { `3 A2 E8 q: u& X* C( m
- Update.printError(Serial);
# c( f+ v6 f: I; h - }
6 k3 ~$ w9 b/ W6 w9 W5 u - Serial.setDebugOutput(false);" I" c1 \/ B. Q Q: j; s4 Y
- }6 H$ q0 |3 R4 F0 y0 @3 W0 G
- yield();
$ x: \& \) {1 z) Z7 r - });
3 ]" `! u# c5 p$ n6 u* D - ' a. U6 \' q$ ^
- digitalWrite(2,0);
3 B# b" p3 W' |6 T" G! I, V - mainAction();
5 ~0 u* R2 d2 f* U1 O$ k - if (digitalRead(0)){
& p& I. c$ f; {1 Y - ESP.deepSleep(0);
! B* a" f- d, P* p8 [/ C - } else {! u6 l9 d0 G ^. o, M
- server.begin();( q- G8 t2 J/ A* P2 a! c( U
- }# h0 t1 n1 O8 d. _' b
- }
- b, ^6 v8 m/ F. c - void loop() {5 q4 |) |6 g+ ]- I8 Z4 o% W4 M
- server.handleClient();
% C% A/ D; L& E4 }8 I1 y2 r - delay(1);
- w U% l6 o/ @; J - }
* R8 D1 g9 N* P, P - String doGet(String url){- Z5 S4 Q$ q! R2 D8 [) ]
- if ((WiFiMulti.run() == WL_CONNECTED)) {" j& r# Q7 e5 s. H5 e3 x9 J1 U. k
- HTTPClient http;0 _0 q: V5 v+ m# `
- Serial.println("[HTTP] begin...");1 W% D }1 | [! A2 U5 E' h2 `
- if (url.startsWith("https")) {1 v8 R' ] e: D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
G1 K. m6 P8 D% F - } else {
3 K0 T, e z* V9 i) e - http.begin(url);
3 R1 r: n$ l0 Q! _4 o3 s - }1 l$ O: w" R( G$ u. p, \0 ^8 q
- Serial.println("[HTTP] GET...");* a+ {% R K. s" g" I
- int httpCode = http.GET();
9 h- ^* s, O8 }2 \3 x% f- \ - if (httpCode > 0) {
% W9 @& y [6 T( W3 q6 v3 ]6 K - Serial.printf("[HTTP] code: %d\n", httpCode);& M( _5 G* F' b) n8 d, L
- if (httpCode == HTTP_CODE_OK) {
1 h8 |5 W/ y, A5 a - String payload = http.getString();! K; R! K+ D3 _: I* R q. [
- Serial.println(payload);
3 e, } h+ v* F- [ - Serial.print("\r\n");8 O5 H5 i: e1 E d# _
- return payload;
- |5 o# _3 U3 [$ g/ G& _ - }* m, k* ^# q3 X; h# h7 D6 D' b
- } else {
) o9 O- K! m3 a3 y; o- {. M3 D8 i - Serial.printf("[HTTP] GET... failed, error: %s\n",
b% I$ }8 ]- [ - http.errorToString(httpCode).c_str());
0 [0 ? j9 K% V0 ^. z. U; k) d - } g |! W+ C0 `: T1 `. K$ E
- http.end();8 x6 n. C0 l( d3 Y( O5 |% `
- return "";
" c' O! ]5 i2 W2 d - }
/ N+ i; Z. `1 w" e - }/ I% n# J9 _8 h! d0 p
- void mainAction() {2 L: k% V* L4 S
- // 发送请求
% Q7 K' J1 B# _: j - doGet("http://google.cn");
2 k' B) a6 H a. _9 o6 x7 C - }
, Z8 M4 P# x3 L
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