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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)
0 @" N: [+ w$ a* Y' f) X1 A6 c- #include <ESP8266HTTPClient.h>% ^: B) ]8 F! _' w5 d
- #include <ESP8266WiFi.h>
+ H4 g |# ~- ~' b/ j5 U - #include <ESP8266WiFiMulti.h>
/ F' L# V5 P4 n' y. |- b1 y1 z3 B8 P - #include <ESP8266WebServer.h>
. u4 e+ y5 A- z8 P, V - #include <arduino.h>
4 j" }) {/ \4 C. J2 ^* {$ f- X0 j - ESP8266WiFiMulti WiFiMulti;' L u- ]# U" ]0 |( w: d
- ESP8266WebServer server(80);
- I5 y/ p$ ]* U5 N - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. U% n- {$ h5 l& g0 K
- ADC_MODE(ADC_VCC);) ?" A( J- d m. a! a' G- k
- void setup() {
. I3 B" F- ` b n6 q8 A - Serial.begin(115200);3 h3 V; K$ L1 F9 k" D" Y6 A
- Serial.print("\r\n\n");
' {/ s/ _3 c5 P1 g# o - pinMode(2,OUTPUT);
0 p0 I8 r6 W! C5 s - // WIFI
7 Q5 W! n2 q6 ?3 G$ M+ ?, a - WiFi.mode(WIFI_STA);; v! r( n: \0 h- X6 s
- WiFi.hostname("Sparkle");
9 d& x! y8 e" o* d - WiFiMulti.addAP("wifi ssid", "wifi password");" V0 d0 d' u0 z; k _
- int tryNum = 15;
; [! F! Z# T6 `+ Z% M: } - Serial.print("Connect WiFi"); [% l( W0 f! O+ H! q
- while (WiFiMulti.run() != WL_CONNECTED) {4 J2 K+ B7 v1 f/ t% J l. S- s
- digitalWrite(2,0);
. w0 D% B8 D: Y4 H - delay(200);
1 S' g3 M! o& C4 Z - digitalWrite(2,1);
/ W4 k4 T$ r4 n0 i/ v- t - delay(300);
$ X1 D2 c7 h+ b) V6 d - Serial.print(".");
* @/ u; K0 l4 p6 ?5 R: X7 C# X - tryNum--;7 a; L% I5 ]- O0 Z
- if (tryNum == 0) {1 O3 w, ~: n; S; s! m
- // 1min
& g& J9 p9 i8 z7 b - // ESP.deepSleep(60e6);
! M% _3 Q7 z; N; N - ESP.deepSleep(0);8 u7 P6 Z4 {$ b' M {
- }; a2 ^2 S8 d8 m& F( C- s
- }
4 t( W; f9 |5 C4 q6 @9 M6 T# e - Serial.print("\r\n");
& w" j( N9 w: w - digitalWrite(2,1);0 f( L$ a X, v, Z. C) K( f
- Serial.print("IP address : ");8 K# r& [" J1 P) {1 ?
- Serial.println(WiFi.localIP());: P/ S4 B4 s$ f. T4 ^4 n
- server.on("/", HTTP_GET, [](){
4 `: j1 G& i3 w - server.sendHeader("Connection", "close");
) e% h$ I$ r+ v9 a( T! ~ - server.send(200, "text/html", serverIndex);( T u5 `& K& o0 ? T S) _ R* i, ~
- });
/ Z. D9 U4 n+ d6 q - server.on("/update", HTTP_POST, [](){
+ M! p* Y2 y, O: r7 C$ K3 t - server.sendHeader("Connection", "close");
( H2 X; H8 e& W/ s+ t5 M. \$ N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ n8 P9 R% ?6 \. A$ y0 I& v
- ESP.restart();, x/ o- c4 w3 S* Y
- },[](){
/ |" r1 I8 m+ W. S1 P - HTTPUpload& upload = server.upload();
# w/ i4 R+ @9 C' N1 ?2 m# Y9 O4 P - if(upload.status == UPLOAD_FILE_START){
0 g7 m5 m: |2 t, y8 W7 n( S! I# N - Serial.setDebugOutput(true);
3 k* z' h! F* O1 G) R: x, ] - Serial.printf("Update: %s\n", upload.filename.c_str());: z7 q8 ` O( ] g, K) T3 n& ?. \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& ~5 R3 w+ R2 i4 P* W8 y: C - if(!Update.begin(maxSketchSpace)){
5 k0 }& o: \9 X0 t( W, R3 P - Update.printError(Serial);2 N: K! H/ a: ^& B# S
- }2 B& t! ^& D4 N/ c+ V0 t' ?
- } else if(upload.status == UPLOAD_FILE_WRITE){8 c& u- d9 X( K# m
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ L, Z: J# B, e' }9 v9 f8 f - Update.printError(Serial);+ O: w( b6 ]4 h6 {7 `" w
- }
% ]5 b! ]$ V" y+ U2 m; k, E - } else if(upload.status == UPLOAD_FILE_END){, i3 \8 n3 ^' A
- if(Update.end(true)){3 V* }( F7 ~$ M0 G; I0 Z" s
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 a( N+ A: e6 y4 b" R( x - } else {' i% D6 @9 J+ {1 E* [
- Update.printError(Serial);+ A$ F3 Q( H* \8 y9 `
- }% ?7 B4 [; r) M1 V }' V- J
- Serial.setDebugOutput(false);& d* r9 H+ L+ i8 @' g
- }. N( `7 b& T1 G
- yield();
+ i6 x1 C* D6 D: f - });) K* v3 v: M+ s; w" {6 X
-
7 p+ c; p0 q! V: u5 k0 F - digitalWrite(2,0);, w# n' s, u, ~2 A" b
- mainAction();% L* U# P0 Q9 I) o: U/ O
- if (digitalRead(0)){, R, `1 Z1 N- W; g
- ESP.deepSleep(0);
- {' V2 M+ @; ^' T, T- {1 K- z - } else {6 @& S+ N/ q9 P( k, w. w1 z0 @, x
- server.begin();
2 X; ?- w/ X+ E" h, K; [7 ^9 r D - }3 |: D7 ~% q* E( E% {3 e
- }
G5 H0 |* W# u4 ?* S3 U - void loop() {/ u8 Y4 ?% F9 b) C5 h
- server.handleClient();
$ }) V8 I) S4 P3 z. o - delay(1);! r: q- p4 y# Y% C C {
- }" T6 V& L6 I' }: x) Q! v3 [" h: `- \
- String doGet(String url){! m$ T3 \$ |8 G' C
- if ((WiFiMulti.run() == WL_CONNECTED)) {
+ ~7 _4 K5 b- d: z, F7 a - HTTPClient http;
* Y, N' J2 W% A1 p: U - Serial.println("[HTTP] begin...");- R& h. ]* S0 |' V, h' A
- if (url.startsWith("https")) {6 _6 q- E* q: x6 e j" h
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& }8 \$ V3 k; M - } else {
5 {) J$ w. F! \: C. l3 k* A - http.begin(url);8 ]& l6 m- |3 s; |( v+ n
- }9 K, A6 m7 d9 R: u
- Serial.println("[HTTP] GET...");
9 v' f* R$ `. }7 \( \! C1 s7 V - int httpCode = http.GET();& L" Y. y' Q- _7 P
- if (httpCode > 0) {
+ R1 {6 }2 G4 s, ]9 P4 p, R3 [ - Serial.printf("[HTTP] code: %d\n", httpCode);( h$ F6 p- h" m" q6 j. E ?8 L: v
- if (httpCode == HTTP_CODE_OK) {
; i# @' j3 f" |( U$ N - String payload = http.getString();/ o% k0 W, z0 D1 w- g% Z+ {
- Serial.println(payload);
0 |4 Z$ Q! r1 x3 n - Serial.print("\r\n");
1 N2 \4 i R, o; Q - return payload;
+ m$ B5 E) V, Y' ~; T' J! Y - }% N* w1 q' D1 t& s( v$ k
- } else {& q0 H$ [; T) ]3 [4 t- l
- Serial.printf("[HTTP] GET... failed, error: %s\n",* k$ `3 C2 Z1 I/ D1 ~0 G
- http.errorToString(httpCode).c_str());
4 X- p4 O3 B# v" O, T. A - }/ E9 w5 k- P6 B6 P7 d- s* s! w
- http.end();; x( C; t/ `; t5 Q0 x' A G3 o
- return "";4 |1 i: T' U8 k$ ^
- }
# j6 H* S& o# c+ [- ] - }, C* m- I, H. N$ e
- void mainAction() {$ S0 u% c1 T5 K9 Q% a! S$ k
- // 发送请求- J, } k, h% o" z `
- doGet("http://google.cn");
" q0 w8 ^& z$ } - }9 ~# L% ~$ L8 C. P
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