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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)3 Q$ Q0 `" A0 t6 L* Y
- #include <ESP8266HTTPClient.h>
! ]4 f$ C* E& v1 b0 D4 Z( z - #include <ESP8266WiFi.h>8 ?" R) ~, q$ A6 g8 `; z5 o
- #include <ESP8266WiFiMulti.h> X% U8 z2 N' \
- #include <ESP8266WebServer.h>
+ B: o9 _8 f7 B8 R% O/ m: Q2 ~4 }3 x) V - #include <arduino.h>
) o/ Z S3 i# c% y - ESP8266WiFiMulti WiFiMulti;1 o: p; A3 q+ r0 U* s. J
- ESP8266WebServer server(80);9 a+ d! i* q; Q$ C
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' Z+ p, a2 y" q% q( V8 Q! W - ADC_MODE(ADC_VCC);
# {+ O+ A/ f, A2 Y \ - void setup() {- `3 b( C4 N3 f% h8 v
- Serial.begin(115200);/ }5 C1 ^" C0 G( I* ^7 f5 S
- Serial.print("\r\n\n");3 }1 j: l2 [9 h, \+ S7 M A
- pinMode(2,OUTPUT);; [- r1 N8 G; v& H
- // WIFI; v) c/ s) r8 j/ c9 S
- WiFi.mode(WIFI_STA);
* @1 ^' g0 S2 p2 f - WiFi.hostname("Sparkle");
! e3 I7 K8 g) ?9 N! j - WiFiMulti.addAP("wifi ssid", "wifi password");, u- O. G' s6 u! I, W' J7 x
- int tryNum = 15;
& A4 M" v, j# G - Serial.print("Connect WiFi");3 Z! W2 Z1 y5 v# P, L) v# t
- while (WiFiMulti.run() != WL_CONNECTED) {
& T+ `* E2 ^' \8 P) @, P. _ - digitalWrite(2,0);
9 b4 e/ C. X" u- J - delay(200);$ e( y# a) |" D+ k
- digitalWrite(2,1);
\( Z* N0 P6 C' H/ Z& ` F, p - delay(300);
, }( o; @' [# g8 L. `+ F% P6 X& u- ] - Serial.print(".");
! Q0 f$ j! |: b3 }' D% J1 E - tryNum--;# y* g/ r+ L# R) v; g Q
- if (tryNum == 0) {# ^" D- V3 _7 T( O3 u! r, `) Q
- // 1min
- D, W/ ]5 k9 f" o% h/ Y3 _: s - // ESP.deepSleep(60e6);
; d! Y/ O7 f" p e) t, y) l - ESP.deepSleep(0);
+ `/ ~/ H9 a4 c+ b+ y - }; y2 S% q u ~: ~* ^- q) l
- }
; V9 _4 }* ~0 V; G - Serial.print("\r\n");: s+ Z; e* r/ j a
- digitalWrite(2,1);/ \8 _4 s0 P. q/ j6 b
- Serial.print("IP address : ");
^/ }7 U" L% p8 r/ X( p - Serial.println(WiFi.localIP());
! \ R9 @+ W+ k) M7 z& \/ O - server.on("/", HTTP_GET, [](){
7 O M7 U( e+ A' `4 P, U% c - server.sendHeader("Connection", "close");) M" q" E+ j3 i9 B. A
- server.send(200, "text/html", serverIndex);
1 V: f" x: d, ]: U - });; H% L/ o/ z" e* U) @# L
- server.on("/update", HTTP_POST, [](){ L" G& V+ X% W
- server.sendHeader("Connection", "close");6 l5 _% m1 u1 g
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, u: h8 z5 C% t: h+ J
- ESP.restart();! A" o6 j9 ]2 q6 z
- },[](){0 n6 I6 _ H/ p4 C/ a1 V
- HTTPUpload& upload = server.upload();
" g# e9 x9 H0 w - if(upload.status == UPLOAD_FILE_START){
1 c3 C2 q; W: k$ p! t W0 e" h - Serial.setDebugOutput(true);$ E4 ?/ W8 ]$ |& _& W
- Serial.printf("Update: %s\n", upload.filename.c_str());" d2 g& f' |2 w- [2 P, t; Q8 W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! ^+ [+ D5 ]5 q% ?8 i% o$ b
- if(!Update.begin(maxSketchSpace)){2 v# e# A& \3 @
- Update.printError(Serial);
. e, l6 f5 e0 T# a8 E - }0 g' s4 A/ v* ?) \, Q8 X, f
- } else if(upload.status == UPLOAD_FILE_WRITE){
8 g- X. j5 x+ n- y, Z2 S - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 |+ Y# T$ f% X9 n8 g& u2 } - Update.printError(Serial);
, _ t* r4 a* o/ i8 g$ t - }
) e6 I+ G8 Q' n2 Y/ e - } else if(upload.status == UPLOAD_FILE_END){
9 D: X9 [! S7 Q7 o/ q0 T6 V. t9 a - if(Update.end(true)){# W0 p* Z. s* B3 d# G. u0 W
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; U+ z5 K0 ^! ]3 e# s! C9 t% v; a - } else {4 O) ?7 S) q& X
- Update.printError(Serial);, _& O9 v4 j1 n, \# s
- }4 Y c* Z. s& W* k" i
- Serial.setDebugOutput(false);
* A/ b9 i) b3 t- ], Y. w s - }- ~& S5 z: M! u1 i) z
- yield();
4 P8 H* Q8 O3 n+ \4 w - });! A4 E3 \/ W' l% `& C
- U, k) n) r# E h
- digitalWrite(2,0);2 A& K3 ?, z. o9 x5 x5 q% u
- mainAction();7 P5 h5 T7 h( o& o0 m
- if (digitalRead(0)){
" i7 `3 d% L2 \; H" w& y6 b - ESP.deepSleep(0);( d& ?( ~) o1 _( ?6 s6 g) L0 \
- } else {* x0 S- R& c% u5 g& v M/ C9 F
- server.begin();' N* I* _0 L W& [' p- d% C8 W
- }
+ H* M- l9 s7 T+ m5 ^4 u# H - }2 r( P/ j. k6 H, E8 _4 y9 S. s0 g
- void loop() {
' d( Z! K7 A0 s U& ^+ ] - server.handleClient();
0 u6 l. U) K6 H- X& k9 ~, J - delay(1);
; c/ T! \. E$ s - }$ Q; O9 ?3 T8 N
- String doGet(String url){# }* U3 O8 f( d4 S2 q8 o
- if ((WiFiMulti.run() == WL_CONNECTED)) {
+ o) d. K5 S" M - HTTPClient http;
/ p- C" N2 B) p# I1 T0 R0 R a: \ - Serial.println("[HTTP] begin...");
, ?. o( { |7 Z; F9 a - if (url.startsWith("https")) {
# C% M& b: ?/ s* z a5 ]* c. F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: t! F3 C% g& k: J7 T: x
- } else {3 Z5 Z! r! P8 c* G$ ^1 t$ v
- http.begin(url);
+ H( R+ ]- O3 {6 h2 i. q2 Y9 | - }
) C* g5 _- n p8 A$ \2 H* n - Serial.println("[HTTP] GET...");
/ P6 w3 Q+ B3 g# \) F" n, F - int httpCode = http.GET();
4 O- n; }: W5 h3 q0 g - if (httpCode > 0) {
. b0 J% {% s9 C0 [- F/ E r- N( V - Serial.printf("[HTTP] code: %d\n", httpCode);
" g6 a: {, n$ R - if (httpCode == HTTP_CODE_OK) {
9 A2 u- S9 Q% f& i7 z+ O4 I& F - String payload = http.getString();% @5 @1 J3 J( F% x* K
- Serial.println(payload);; G2 [" S m' m+ T, K- o* Z
- Serial.print("\r\n");5 x0 z. g; ~" E: P, R- T% D( Q' C
- return payload;! t2 T& z8 u& y {9 ?9 y* e
- }
$ Q! Z" a1 i$ Q- g* G - } else {
, B' X+ C* s6 R, y4 d+ `" _ - Serial.printf("[HTTP] GET... failed, error: %s\n",5 q! C( v- ?) j9 d' X
- http.errorToString(httpCode).c_str());; O9 Q: r* W" n# ~% a, L
- }
7 x7 w7 B# ^. @9 K - http.end();1 P1 J9 b; J5 e+ g1 C9 Z
- return "";1 | f8 ]1 b! s" [2 Q c
- }* x# ^; u4 K5 R2 [+ {0 z! E& v
- }
, l( J% K) I) R& y! `9 Y7 J - void mainAction() {
! c3 p; j7 O1 I4 n- O( v - // 发送请求
; i# F. m3 N! r) u: i - doGet("http://google.cn");
3 y5 U5 U* C1 t3 C8 o0 x7 A- q - }
! {6 i) C4 U" M. ]9 P! E" d( E
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