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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)) x& [+ I ?: L! X9 G7 H
- #include <ESP8266HTTPClient.h>. j/ ]: c: o8 {- Z- p
- #include <ESP8266WiFi.h>
- @& o4 H% p+ ]( K) J7 C - #include <ESP8266WiFiMulti.h>
# l( n" M7 i( x5 U/ e - #include <ESP8266WebServer.h>
+ P( L- _5 r5 D* n+ V - #include <arduino.h>5 N/ l0 C4 o- {% K+ T) q+ O/ d
- ESP8266WiFiMulti WiFiMulti;
, L) q/ Y9 [; I1 j6 [ - ESP8266WebServer server(80);
, k p& C: f" F - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 Z, M# m# [* o, \, Y1 w
- ADC_MODE(ADC_VCC);' j' ]: u- P) N5 d; J
- void setup() {
5 H, Y$ @4 {' Z' O( r - Serial.begin(115200);+ ^, O8 Y K: O) q& S
- Serial.print("\r\n\n");
1 L' A7 _5 p( g' n3 p$ S- W - pinMode(2,OUTPUT);6 c/ b% a, g5 k* w0 _7 f
- // WIFI
# t3 b5 c4 X+ S6 F5 D) A7 ~ - WiFi.mode(WIFI_STA);% [4 q3 A7 y$ q4 g6 y
- WiFi.hostname("Sparkle");3 x+ `4 N, v/ ^" V4 n7 h
- WiFiMulti.addAP("wifi ssid", "wifi password");
: P6 S z2 k- O4 \6 m% O - int tryNum = 15;
: |# P1 |' I/ a; h$ ~ - Serial.print("Connect WiFi");( _; G6 n ]8 R6 j4 A6 Y' G
- while (WiFiMulti.run() != WL_CONNECTED) {
& Z" M/ }1 ]* a1 n& k - digitalWrite(2,0);; u, h O( T" F
- delay(200);
, S' c9 [/ E! p- y3 { - digitalWrite(2,1);3 K' B" S$ L* z/ t
- delay(300);' L0 q; |+ b8 u
- Serial.print(".");: j' z- O, s/ o+ X. O+ d
- tryNum--;( F$ C" ^( M$ c4 d v: z- c# P6 W
- if (tryNum == 0) {# H6 S5 G. ?5 ~0 \5 X9 \
- // 1min
! A( g1 ^& E7 s8 P2 V* G - // ESP.deepSleep(60e6);2 e! R+ ]0 e! M- J
- ESP.deepSleep(0);5 h7 |8 o! ]. ?
- }- S J/ o; n* r+ v0 W' d4 R
- }
: A% v+ S1 r) X A# n' ]3 E - Serial.print("\r\n");) [' g! Q, L, V: P C# G
- digitalWrite(2,1);
5 X* t+ S. w$ X/ l - Serial.print("IP address : ");2 N8 Q) g' A6 M3 N4 w
- Serial.println(WiFi.localIP());, M) w! [% m8 k) T
- server.on("/", HTTP_GET, [](){
6 x9 Q' u* d/ Z% r- U - server.sendHeader("Connection", "close");
7 S A6 d8 P( \1 } - server.send(200, "text/html", serverIndex);$ g' e P$ a9 o1 Q
- });* f; ^; s8 k' \& H) ]& x* E+ x
- server.on("/update", HTTP_POST, [](){
- n3 C$ h- @" V6 k - server.sendHeader("Connection", "close");
/ d5 A0 J, I9 A3 e' `/ n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 S$ E6 U; S+ J1 `" T
- ESP.restart();# i( y D6 w# H. \& D) ]5 \
- },[](){ M0 d; |: S4 ?* b
- HTTPUpload& upload = server.upload(); V0 ?5 t5 v& ], I; ~. |' {
- if(upload.status == UPLOAD_FILE_START){( n$ C5 y' _+ P
- Serial.setDebugOutput(true);
1 F5 s4 z R* q8 l - Serial.printf("Update: %s\n", upload.filename.c_str());
- q4 G9 X5 B3 o9 V( z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
\2 n5 c& g3 ^" l6 w - if(!Update.begin(maxSketchSpace)){. e) | V2 w, V$ y- V
- Update.printError(Serial);
* r0 U9 A" O! M8 V( u: @8 V - }7 L" ~- X) R o) k) H
- } else if(upload.status == UPLOAD_FILE_WRITE){
0 u0 ?. B3 K+ w6 I' ? - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 ]1 A( R$ ^5 `$ W' s - Update.printError(Serial);
) e; g% `$ H4 s+ _$ S/ ]4 o - }
/ }8 |0 `, k& G# ?0 b: B# A - } else if(upload.status == UPLOAD_FILE_END){& x* L; \& Q& g; _9 _! _) y
- if(Update.end(true)){+ H4 ?9 @- ~; Y. \8 E
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ u3 T& }5 {; t5 D0 t5 u% ]7 s( Y4 C - } else {
( W' I- ]. C+ P7 G - Update.printError(Serial);
" q" c0 O2 N2 }4 _4 O4 m- S7 C - }; |9 C* }! w9 c, ~ q: r3 j
- Serial.setDebugOutput(false);
- F# {& B. B5 X$ F5 k7 D - }5 I z. k. ~' Y1 F! z* @$ X" M" R, Y) h
- yield();
2 z# [$ E& L; k& o6 J! z - });
, W4 L I# `, ~' L o: _8 z9 U3 p - * R# Q. R8 m0 d
- digitalWrite(2,0);
, R" H0 ~0 R" k4 U ] - mainAction();
, \& v( r) v1 V1 U) h8 U. }/ x2 N - if (digitalRead(0)){
1 _) G3 w0 M- @* T6 p @7 p - ESP.deepSleep(0);& e7 W( W6 w0 u" A) u7 ^- C' |$ t
- } else {1 s7 Z( H& w! Y. ~; H2 {, v+ x% Z
- server.begin();% r8 \& D! _0 d, Q2 ^
- }
, k( R/ r/ i6 r0 H& f4 [% I) H. x8 A3 W - }) O. x3 D G0 E9 V
- void loop() {
( P# ^% w5 k h8 {% w! Q - server.handleClient();
# M+ j8 y: A8 S% |4 j0 E% ? - delay(1);' G& r/ w( g% y9 Q
- } l' P: A9 l! w5 u7 [
- String doGet(String url){
3 W* h4 e5 O' r5 e - if ((WiFiMulti.run() == WL_CONNECTED)) {. ]: ^) J( w7 ]' t
- HTTPClient http;+ f5 `' K9 h" ?/ I
- Serial.println("[HTTP] begin...");. p; Y N, k6 p d @! ~) {
- if (url.startsWith("https")) {( ^- L5 O, n9 D( ?3 O4 |+ \5 r) ]
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
5 H7 F' c5 m) j" T - } else {
' y. M4 l" a& i& R7 | - http.begin(url);7 ^# J( u+ c4 Z; N) P
- }
$ {' D) ]1 }. U, T4 X' _5 | p4 H - Serial.println("[HTTP] GET...");
3 \2 `. L9 j8 Q/ c( M; K - int httpCode = http.GET();
* `$ B& g5 C* Q) S - if (httpCode > 0) {
R3 ^: b( |& a* ]: A! N5 s# f5 h - Serial.printf("[HTTP] code: %d\n", httpCode);
- A, `% H5 b3 Z# R - if (httpCode == HTTP_CODE_OK) {5 z3 V% }* p1 F; g! B% M
- String payload = http.getString();2 M! q" R# P( ^+ K/ l
- Serial.println(payload);; [6 q$ U2 M$ `: W! i/ O
- Serial.print("\r\n");
O. c3 e! T7 v/ m5 w# M1 }* Q - return payload;. p% t# ?* D8 t
- }5 }/ N" z, l, P% n5 P
- } else {/ l7 y& h& c1 h. i: I/ m
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 Q4 E" [6 o# n - http.errorToString(httpCode).c_str());# `3 _! A! m S& n
- }8 p: ?+ E" |+ B. B6 H/ k0 a
- http.end();
2 ~# N' F1 m% }4 I1 e* d9 L - return "";9 ^+ ~% H/ t# b3 Q9 d
- }
7 N. f0 u& \; g5 G - }
( @* |+ M L* R$ Q9 d D - void mainAction() {1 u q+ n2 Y4 g# i
- // 发送请求# P) M% r {% f4 G
- doGet("http://google.cn");
8 [' @4 L! N8 F5 r, h0 i - }
1 _! Q# Z$ n5 i5 \, p
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