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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)$ Z% d9 d4 f. N J7 X4 j
- #include <ESP8266HTTPClient.h>
) W' a7 Y5 H* v' n/ i - #include <ESP8266WiFi.h>" @! Y4 Z" F, n7 K. h7 S
- #include <ESP8266WiFiMulti.h>
5 a; d5 G% M$ a - #include <ESP8266WebServer.h>/ K% @3 v% ^: M8 B5 C3 ~9 z3 \
- #include <arduino.h>
6 c; k1 [0 t: Y# {7 |5 }/ W - ESP8266WiFiMulti WiFiMulti;; w3 \; v$ g3 f
- ESP8266WebServer server(80);
, e0 D- A Q7 o$ R+ x - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( D$ a4 x7 C' u- D3 m- i# ]
- ADC_MODE(ADC_VCC);
( w& L! Z: j- G' d' ~+ R! l, h: G - void setup() {
3 l E4 W* w( k/ N - Serial.begin(115200);* k. V( q/ x5 w2 p5 `+ e% ? t: L
- Serial.print("\r\n\n");* P8 ?9 V0 r2 v* ~( ]9 {
- pinMode(2,OUTPUT);
. T* k* U7 f8 h* S6 d% n! p - // WIFI4 I2 n+ {' i0 V: t' i. h# Y+ d
- WiFi.mode(WIFI_STA);
1 C$ J4 s9 B4 b g - WiFi.hostname("Sparkle");
( }# q0 p7 F3 ?- u+ O3 X7 m7 O! E - WiFiMulti.addAP("wifi ssid", "wifi password");
" @* f5 }1 \# C' L5 _* ] - int tryNum = 15;
b4 N2 V" [+ H* T - Serial.print("Connect WiFi");7 l* [9 y' F: F
- while (WiFiMulti.run() != WL_CONNECTED) {& l7 r {/ D" M) { L8 W( T+ u
- digitalWrite(2,0);0 F* [% a& \6 Q! O! T7 E, r* I7 j: @
- delay(200);
' l3 p2 Z# u( z8 H& f' i/ ~( t+ D. V - digitalWrite(2,1);
% n! }7 \% I2 r; C: b - delay(300);
' F/ n& p# c( c( I1 @2 z - Serial.print(".");1 f/ h H, E! Q3 j# a6 ^+ w z
- tryNum--;
' P1 k4 d+ q! B4 v, k" i# J$ A8 s; Z - if (tryNum == 0) {
* p4 W- p8 \* ~6 Z) H8 D - // 1min. u# e- i6 a1 J- n+ j$ o
- // ESP.deepSleep(60e6);
' v8 [& m" ^8 {; D8 t: n8 i8 }' e - ESP.deepSleep(0);
% d: h4 v. h/ X5 c2 W0 ~( G+ h - }
) b3 w* g: F: W0 w" a2 i0 } - }0 o: U% ]0 B) z y/ o) |( r! i& O
- Serial.print("\r\n");
& ~: m' M5 }; v - digitalWrite(2,1);. w( M% ?' J! b
- Serial.print("IP address : ");* D0 r' c' K+ g% W
- Serial.println(WiFi.localIP());
4 a% P- l' J# l/ N - server.on("/", HTTP_GET, [](){
2 v* @7 G, V% s+ I - server.sendHeader("Connection", "close");
' e" h2 p# s: T8 m: E9 Y - server.send(200, "text/html", serverIndex);- L8 D- a5 U P0 P
- });
2 R# P* u6 F9 [* p - server.on("/update", HTTP_POST, [](){4 R! B+ ~" w5 V1 Q0 n5 K
- server.sendHeader("Connection", "close");
# u) h: p1 j$ d) p! z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* L- l! `# y. Z; H
- ESP.restart();: ~" g: U/ v4 y- c
- },[](){
- a' p7 q' r8 o; b - HTTPUpload& upload = server.upload();
+ C$ Z! H# f. D" M$ Y - if(upload.status == UPLOAD_FILE_START){
! n( X- K" E# B4 \5 H# j) s8 z - Serial.setDebugOutput(true);# h: g# V D& w& s' j# d
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 x! v8 l" L- c+ K) X: E9 E$ @ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( ?% d- d2 N* Z7 B0 S4 F" m* e
- if(!Update.begin(maxSketchSpace)){
( b6 T2 f3 W8 }: R1 d) { - Update.printError(Serial);, I2 ~9 l" B" w) b" _- T1 i( n
- }
/ f0 P% r1 C3 K3 M8 l2 H: ` - } else if(upload.status == UPLOAD_FILE_WRITE){
( N4 V/ `: S. M) ~' p8 s - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, X; S* Y! J" O6 N6 o9 U" L
- Update.printError(Serial);2 g. g$ Z* t5 ?4 B- A
- }: ~, u- s# F+ M% Y Q' S5 u
- } else if(upload.status == UPLOAD_FILE_END){2 \: ]- U8 g8 d+ m5 g
- if(Update.end(true)){
! v' h- D$ ^$ B+ O' T - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 a1 `1 O U/ H2 n3 x# W1 T
- } else {
; O6 \5 R9 A9 n" _1 s5 t% b - Update.printError(Serial);5 h$ A( r/ j- z: j: N5 [
- }
. c/ D/ D# Q4 {5 \7 C" O - Serial.setDebugOutput(false);
: l) Z* x, g( \$ e& Z8 n, E! ^ - }4 N1 s9 y! X5 X
- yield();3 G3 Q m$ O) q' t! p* I" N$ A
- });+ y0 R2 I) K) t) Y7 ]& J
-
# f) T- g; s- S- [/ { - digitalWrite(2,0);6 S4 B2 G' Y' K
- mainAction();
) h% J* @1 Y# i' v - if (digitalRead(0)){$ N; R4 d x' }
- ESP.deepSleep(0);& T h9 a, ]& ^6 _
- } else {" Z4 Q5 n* l+ h% O# D2 b# h% z
- server.begin();+ v; r/ n+ H" a( \
- }( l$ }7 p# X' f$ Q" z) {
- }
2 _2 m- o7 z& Q' L2 G2 D: m3 C6 c - void loop() {# D e* }- G6 E+ [8 S0 }
- server.handleClient();: P" E/ Q! A/ e$ n" F
- delay(1);
! S6 a* j- h/ z; T% b3 ?+ Q - }7 V4 v, V3 M5 ]& y! p8 |) r
- String doGet(String url){
. z0 \& C& i B# {$ V% R) @ - if ((WiFiMulti.run() == WL_CONNECTED)) {; R9 E! y$ q- e! X
- HTTPClient http;' _3 p9 C7 e! I+ n( }- V7 W
- Serial.println("[HTTP] begin...");
" t) m" p C- N# ~ - if (url.startsWith("https")) {
8 K2 F' Z3 b, \; i. F# h - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 j) W+ R1 `& `8 X
- } else {' c- i3 j$ \, o
- http.begin(url);
$ d" A9 C" H( q0 Z' o - }5 C# U" |" P# s
- Serial.println("[HTTP] GET...");
9 l$ H. W! I( F5 I' C3 A - int httpCode = http.GET();
, ?- J( Q5 E+ i5 t2 A2 ?8 y+ K - if (httpCode > 0) {
9 ?5 J$ b6 k3 j4 b z4 T6 C - Serial.printf("[HTTP] code: %d\n", httpCode);6 i# w, R8 \5 r0 m/ H, l8 u. K4 t
- if (httpCode == HTTP_CODE_OK) {3 u2 k' Q) J% W X
- String payload = http.getString();8 W% d& }6 |, S; {8 H4 U
- Serial.println(payload);
( V0 p! t2 t4 K1 v* `7 ]4 g - Serial.print("\r\n");
3 y$ g+ y+ b- ]) D# ]$ u; X6 m - return payload;
4 _, c0 J; C% _* s3 o - }9 P# B% q* e( u2 A( Y# u: [7 D& ]
- } else {
4 k9 ]$ T; ^& i4 n - Serial.printf("[HTTP] GET... failed, error: %s\n",9 Q# W9 Y; L% d% | @
- http.errorToString(httpCode).c_str());
; H/ ~% \6 Z9 R4 ]/ N - }! M: W0 L# d6 m! u, y
- http.end();+ I& ~* r x: w4 m
- return "";# a9 L) S6 X H- o
- }4 Z1 Y! U- q7 i+ x
- }+ E$ ~4 S' p) u( D. D9 D ~* Q* f# [
- void mainAction() {: }( R a! e# T- {& c4 [
- // 发送请求
3 k4 C3 Q7 h* r) |- T - doGet("http://google.cn");6 m1 v4 b ?+ o" V* Z9 X
- }2 Q2 f4 P3 R3 F$ ^8 n
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